JP2845353B2 - Treatment agent composition for fibrous material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agent for preventing shrinkage of natural fiber woven fabric, knitted fabric and nonwoven fabric after washing with water. More specifically, natural fibers (animal hair, wool, silk, hemp, cotton, etc.)
Also, the present invention relates to a treating agent and a treating method for preventing shrinkage of a woven fabric, a knitted fabric, a nonwoven fabric, etc. by blending with a synthetic fiber even if the fabric is washed with water and washed.

[0002]

2. Description of the Related Art Conventionally, scales (cuticles) exist on the surface of animal hair, wool or the like. They become entangled and felt, shrink and do not recover. In particular, felting occurs during drying after being immersed in water or washed and washed with water, and shrinks.
Also, silk, hemp, cotton, and the like expand and expand when immersed in water, but contract when dried. As a method of preventing shrinkage, a method of removing scale (cuticle) on the surface of wool or the like has been devised, and an oxidation method such as an enzymatic treatment method or a chlorination method has been performed to reduce the directionality of the coefficient of friction and reduce the fiber-to-fiber ratio. The Dylan FTC method, DCCA method, and protein method for preventing entanglement of DNA are used. However, it is slippery and frays easily. Further, there is a resin method in which fibers are adhered to each other with a resin to cover a scale (cuticle), and there are a chlorination / resin method of IWS, a croy / resin, a siroran BAP method, and a DC-109 method. However, it becomes hard and the texture decreases. For cellulosic fibers such as cotton, morphological stability has been achieved by mercerizing, blanching, and the like.

[0003]

PROBLEM TO BE SOLVED BY THE INVENTION The fibrous material of the present invention is a woven fabric, a knitted fabric, or a non-woven fabric formed by blending natural fibers such as animal hair, wool, silk, hemp, cotton, etc. and natural fibers and synthetic fibers. etc. met
Thus, the present invention imparts dimensional stability and shrink resistance after washing with water without changing these feelings. It does not remove scales (cuticles) such as wool and animal hair. A water-soluble and / or water-dispersible polyurethane or the like is attached to the fiber swollen in water to prevent shrinkage of the fiber during drying and stabilize the dimensions.

[0004] Wool that has not been subjected to any pre-treatment,
In order to apply a resin treatment to animal hair fibers, a resin dissolved in a relatively large amount of an organic solvent has been attached, but the texture is often poor and hard. In the treatment method of the present invention (hereinafter referred to as the present treatment method), the treatment agent of the present invention (hereinafter referred to as the present treatment agent) is diluted with water or dispersed in a liquid to be treated (fabric, knit, Non-woven fabric, spinning, etc.) are immersed and the treatment agent is attached in water to prevent the swollen and stretched fibers from shrinking during drying, and fix the fibers in the stretched size, and the shrink-prevention effect is improved. Occurs.

The object to be treated has an effect of preventing shrinkage even if it is repeatedly washed with water several times or dried under sunlight, and also has an effect of preventing the generation of pilling (pills). No special equipment is required when using an organic solvent, and safe processing can be performed in ordinary households. The texture does not decrease.

[0006] The treating agent of the present invention may contain optional components such as a detergent, a water repellent, an organic solvent, an ultraviolet absorber, a preservative, an antistatic agent and an antifoaming agent.

According to the method for processing textile products described in Japanese Patent No. 913790, there is proposed a method for processing textile products characterized by using a treatment liquid containing a hydrophilic and heat-reactive urethane composition. However, the free isocyanate group of the urethane prepolymer is blocked with bisulfite to form a hydrophilic and heat-reactive urethane, which is impregnated into textiles, squeezed appropriately, and squeezed at 70-100 ° C for 3-5. For example, a method of pre-drying for 100 minutes and then heat-treating at 100 to 180 ° C. is shown.

However, in the present treatment method, drying at room temperature is sufficient, and no heat treatment is required. In addition, any method may be used as long as it is produced by a method for producing water-soluble and / or water-dispersible urethane shown in Reference Examples described later,
In particular, it is not necessary to use a reactive polyurethane, and a non-reactive polyurethane may be used.

Japanese Patent Publication No. 62-38469 discloses a method of adsorbing a catalytic heavy metal on animal hair fiber, followed by chlorination to remove scale, but this treatment method utilizes a catalytic action. It is not a thing, nor does it remove scale.

[0010]

[Means for Solving the Problems] The treating agent of the present invention comprises:
When the total of the components a), b), c) and d) is 100% by weight, the total amount of the components a): water-soluble and / or water-dispersible polyurethane is 2%.
0 to 99.4% by weight, preferably 30 to 99.4% by weight, b) Component: aluminum salt or zirconium salt 0.3
15 wt%, preferably from 0.5 to 10% by weight, c) component: surfactant (nonionic, anionic, amphoteric) 0.3 to 3 0% by weight, preferably from 0.3 to 25 wt% D) component: acrylic dispersant 0.0 to 40% by weight, preferably 0.0 to 20% by weight, most preferably 0.2 to 1% by weight
It is a treating agent containing 5% by weight.

If the content of the component (a) is too small, less than 20 % by weight, the flexibility, hand and shrinkage preventing effect of the fiber are undesirably reduced.

B) aluminum salt or zirconium of the component
If the amount of the sodium salt exceeds 15% by weight, dispersibility in the treating agent is inferior and sediment is liable to be formed.
When the amount is less than the weight%, the adhesion to the fiber is reduced.

There is no particular effect if the surfactant of component c) exceeds 30 % by weight. On the other hand, if the amount is less than 0.3 %, the permeability is poor, and the stability of the treating agent is undesirably reduced.

The acrylic dispersant of the component (d) is added for the purpose of improving the stability of the treating agent and improving the physical properties, dimensional stability, workability and marketability of the treated fiber. 40% by weight
If it exceeds, the soft feeling is lost, which is not preferable.

In order to produce the water-soluble and / or water-dispersible polyurethane which is the component a) of the treating agent, any of the following production methods may be used, and each may be used alone and / or in combination of two or more. That is, 1 Water-soluble polyurethane (non-reactive type) A polyurethane obtained by reacting a diisocyanate with a polyol containing a large amount of ethylene oxide to a polyol is water-soluble. For example, TD in polyethylene glycol
I was reacted and dissolved in water.

2 Water-dispersion type (emulsion) polyurethane (non-reactive type, forced emulsification type) Polyol and diisocyanate are reacted in an organic solvent or a polyurethane solution in which a polyurethane obtained by reacting a polyol and a diisocyanate is reacted.
If necessary, a solution of the polyurethane diluted with an organic solvent is gradually added to water or a mixture of water and a surfactant to perform phase inversion emulsification. Emulsifiers (surfactants) include anionic (such as sodium alkylbenzenesulfonate), cationic (such as quaternary ammonium salts), and nonionic (such as ethylene oxide adducts of long-chain alcohols). As an agent, gelatin, sodium salt of carboxymethyl cellulose, polyvinyl alcohol and the like are used in combination.

3 Water-dispersion type (emulsion) polyurethane (non-reactive type, self-emulsifying type) A diisocyanate is reacted with a diol and a diol having a carboxyl group or a diamine having a carboxyl group to prepare a prepolymer. This prepolymer can be used to form a self-emulsifying emulsion by the following two methods.

A tertiary amine compound such as an N-alkyl dialkanolamine is used as a chain extender during the preparation of the prepolymer. This is diluted with the above-mentioned solvent, and the tertiary amine moiety is quaternized (hydrophilized) using an aqueous acid solution or a quaternizing agent such as diethyl sulfate or methyl iodide.

4 Anion-type polyurethane can be obtained by leaving a small amount of isocyanate at the terminal of the prepolymer, reacting dimethylolpropionic acid or the like, and adding a basic aqueous solution. Since these can have a hydrophilic group in the molecule of the polyurethane, a water-dispersed polyurethane characterized by not using a low molecular weight emulsifier in combination, such as a forced emulsification type, can be obtained. 5 Reactive water-soluble or water-dispersible polyurethane (forced emulsification type, self-emulsification type) isocyanate groups are temporarily bonded when reacted with a specific active hydrogen-containing compound, and heat is applied or pH is changed. When the conditions are changed, the original isocyanate is released. Carbamoyl sulfonate reacted with isocyanate and sodium bisulfite becomes a strong hydrophilic group, and the polyurethane can be made water-soluble or water-dispersible without using an emulsifier.

As the water-soluble and / or water-dispersible polyurethane of the component a) used in the present treatment agent, the polyurethanes produced by the above-mentioned processes 1 to 5 may be used alone or in combination of two or more.

These polyurethanes have different properties depending on the molecular weight of the starting diol, and have the following tendency.

1) Relationship between 100% modulus and elongation Those having a large molecular weight have a low modulus and elongate well.

Those having a small molecular weight have a high modulus,
Little growth.

2) Relationship between hydrolysis resistance and ultraviolet light resistance Polyethers have better hydrolysis resistance than polyesters.

[0025] Polyester resins have better ultraviolet resistance than polyether resins.

As long as the physical properties of the polyurethanes produced by the above production methods 1 to 5 are in the range shown in the following Table 1, any of the production methods may be used, and the polyurethane can be applied according to the purpose of use.

[0027]

[Table 1]

The diisocyanate used for producing the water-soluble and / or water-dispersible polyurethane used in the present treating agent is tolylene diisocyanate (an isomer mixture ratio of 2,4 or 2,6- is 80:20). 4,4 diphenyl methane diisocyanate (including crude, refined and modified), m-phenylene diisocyanate, xylylene diisocyanate, naphthalene 1,5 diisocyanate, polymethylene polyphenyl polyisocyanate, trimethylolpropane Aromatic diisocyanate, tetramethylene diisocyanate, hexamethylene diisocyanate, 1,4-cyclohexylene diisocyanate, 4,4'-dicyclohexylmethane diisocyanate, isophorone diisocyanate Isocyanate, hydrogenated xylylene diisocyanate, and aliphatic isocyanates such as tetramethylene diisocyanate and the like.

The diols used in the preparation of the water-soluble and / or water-dispersible polyurethane of the component a) used in the present treating agent include polyether diols such as polyethylene glycol, polypropylene glycol and polytetramethylene glycol ethylene glycol, propylene Dehydration condensation reaction of polyhydric alcohol such as glycol, butanediol, hexanediol, neopentyl glycol, cyclohexyldimethanol and polycarboxylic acid such as maleic acid, succinic acid, adipic acid, phthalic acid, or ring opening of cyclic ester Polydiols such as polyesters and polycarbonates obtained by polymerization reaction and ethylene glycol, diethylene glycol, triethylene glycol, 1,2
-Propylene glycol, trimethylene glycol,
2,2-dimethylolpropionic acid, such as 1,3-butylene glycol, tetramethylene glycol, hexamethylene glycol, low molecular weight glycol such as hydrogenated bisphenol A, and ethylene oxide or propylene oxide adduct of bisphenol A, Examples thereof include diols having a carbosyl group such as dimethylol butyric acid and 2,2-dimethylol valeric acid.

The molecular weight of such diols is preferably from 200 to 15,000, more preferably from 800 to 6,
000. As the raw material alkylene oxide of such a diol (polyalkylene polyol), ethylene oxide, propylene oxide, 1,2- or 2,3-
-Butylene oxide and the like, and combinations of two or more thereof. Further, as a raw material polyol of the polyalkylene polyol, propylene glycol,
Ethylene glycol, dipropylene glycol, diethylene glycol, glycerin, 1,4-butanediol, 1,6-hexanediol, glycerintriol, hexanetriol, trimethylolpropane, C
₈ -C ₂₄ aliphatic triols, pentaerythritol, alpha
- can be exemplified methylene glucoside, tetramethylolmethane, sorbitol, xylitol, tetraols, etc. C ₉ -C ₂₄ aliphatic unsaturated polyhydric alcohols,
Raw material polyamines include ethylenediamine, γ- (methylamino) propylamine, diethylenetriamine, diaminopropane, alkyl-propanediamine, alkylpropylenediamine, hexamethylenediamine, tetramethylenediamine, bishexamethylenetriamine,
Triethylenetetramine, tetraethylenepentamine,
Pentaethylenehexamine, mono-, di- or tri-
Allylamine and the like can be exemplified.

Examples of the neutralizing agent include ammonia, trimethylamine, triethylamine, tripropylamine, tributylamine, triethanolamine, sodium hydroxide, potassium hydroxide and the like.

Examples of the chain extender include ethylene diamine, propylene diamine, hexamethylene diamine, diethylene triamine, triethylene tetramine and the like. Examples of the hydrophilizing agent include sodium bisulfite and the like.

Examples of the acid diol include dimethylolpropionic acid.

Examples of the acid diamine include diaminocarboxylic acid.

Aluminum salt which is component b) of the treating agent
Alternatively, the zirconium salt refers to a salt of a metal or an inorganic or organic acid.

As the aluminum salt, sodium aluminate, aluminum sulfate, aluminum ammonium sulfate, potassium aluminum sulfate, aluminum nitrate,
Examples of aluminum acetate, aluminum fluoride, aluminum chloride, aluminum oxalate, aluminum lactate, and the like, and examples of zirconium salts include zirconium sulfate. Among them, aluminum salts such as sodium aluminate and aluminum sulfate are most preferable, and the combination with other metal salts is also preferable.

Examples of the nonionic surfactant used for the surfactant (c) include the following.

1 polyoxyethylene alkyl phenyl ether, polyoxypropylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether having an alkyl group having an average of 6 to 12 carbon atoms and added with 1 to 20 mol of ethylene oxide, higher fatty acid Alkanolamide or its ethylene oxide adduct, sucrose fatty acid ester, alkyl saccharide, fatty acid glycerin monoester 2 Polyoxy having an alkyl or alkenyl group having an average of 10 to 20 carbon atoms and having 1 to 20 mol of ethylene oxide added thereto Ethylene alkyl or alkenyl ether and the like.

Examples of the anionic surfactant include the following.

1 Alkali metal salt of higher fatty acid (soap).

2 Alkyl or alkenyl sulfates having a linear or branched alkyl or alkenyl group having an average of 10 to 20 carbon atoms and having an average of 0.5 to 8 mol of ethylene oxide added to one molecule.

(3) An alkylbenzene sulfonate having an alkyl group having an average of 10 to 16 carbon atoms.

4 Alkyl or alkenyl sulfates having an alkyl or alkenyl group having an average of 10 to 20 carbon atoms.

5 Olefin sulfonate having an average of 10 to 20 carbon atoms in one molecule 6 Alkane sulfonate having an average of 10 to 20 carbon atoms in one molecule 7 Sodium sulfosuccinate 8 Ether carboxylate Reference Signs List 9 acyl-N-methyltaurate sulfonic acid sodium salt 10 sarcosinate sodium salt 11 N-acyl glutamate 12 alkyl ether sulfate 13 alkyl polyglucoside 14 monoalkyl phosphate 15 fatty acid alkanolamide 16 ethoxylate of higher alcohol 17 sulfate of higher alcohol Such.

[0045] Further, as the amphoteric surfactant, it may be mentioned as follows.

1 alkyl betaine type 2 amide betaine type and the like.

Each of the above nonionic surfactants, anionic surfactants and amphoteric surfactants may be used in combination of two or more, and / or two or more of them may be used in combination. The treating agent of the present invention comprises, in addition to the components (a) to (d), a bactericide, a fragrance, a coloring agent, a viscosity fluidity regulator, a pH regulator, a whitening agent, a solubilizer, a stability improver, a crosslinking agent If necessary, an improver, a dispersibility improver, an adhesion improver and the like are appropriately added .
Can be .

[0048]

Examples of the solubilizer include lower alcohols such as ethanol and isopropyl alcohol, benzenesulfonate, lower alkylbenzenesulfonate, polyethylene glycol, polypropylene glycol, and polyoxyethylene polyoxypropylene glycol.
Acetamides, pyridinecarboxylic amides, benzoates, urea, pyridinecarboxylic amides and the like can be mentioned.

Further, as the acrylic dispersant of the component (d) , oligomers of acrylate and hydroxyacrylate, and poly (meth) acrylate and (meth) acrylate
Salts of high molecular compounds such as acrylic acid-acrylic acid ester copolymer, maleic anhydride- (meth) acrylic acid ester copolymer, and the like, in particular, Al ⁺ , Ca ⁺ , M
Soluble organic complexes for g ^{+ and the} like are desirable.

[0051]

EXAMPLES soluble produced by the production method described later in Reference Examples 1 to 6 of the fiber treatment agent of the present invention and or a water-dispersible polyurethane and a) component, to which component b) of the A
Tables 2 and 3 show the results of treating fibers with a fiber treatment agent adjusted by changing the type and quantity of a ruminium salt or zirconium salt , a surfactant of c) component, and an acrylic dispersant of d) component. Shown in

A more specific adjustment method will be described.

In a reactor equipped with a reflux condenser, a thermometer and a stirrer, 100 parts of the water-soluble and / or water-dispersible polyurethane produced in the following Reference Examples 1 to 6 was stirred as a component. Added. Next, in a separate container, a 10% aqueous solution of the divalent or tetravalent metal salt of the component b) and the neutralizing agent of the component d) (polyacrylic acid and / or sodium polyacrylate dispersant, ammonium, sodium hydroxide, hydroxide) A solution adjusted to PH = 6 to 9 with potassium or the like was prepared and placed, and the required amount (150 parts or less) was gradually added, and the whole amount was added to 70 to 80 ° C., followed by high-speed stirring for 5 minutes. After the start of the addition, the mixture was stirred for a total of 2 hours. Next, a required amount (40 parts or less) of the surfactant (c) (nonionic, anionic, amphoteric type) was added, and the mixture was stirred for 15 minutes. afterwards,
d) Add the necessary amount of auxiliary component (40 parts or less) and add 1
Stirred for hours. Thereafter, the mixture was cooled to room temperature to obtain the treating agent.

The pH of the treating agent is from 3.5 to 9.0, preferably from 4.5 to 8.5, most preferably from 5.5 to 8.0.

Reference Example 1 Water-soluble polyurethane (non-reactive type) 900 parts of polyoxyethylene-polyoxypropylene polyol (Sanyox Sannics FA) and 4 parts in a reactor equipped with a reflux condenser, a thermometer and a stirrer .
Forty parts of 4'-diphenylmethane diisocyanate and 2 parts of nitrogen-containing polyoxyethylene nonylphenyl ether (Sanyo Chemical Co., Sannics CA) as a catalyst were added, and the mixture was reacted at 70 to 80 ° C for 3 hours with stirring. Next, 600 parts of warm water at 40 ° C. was added to obtain a water-soluble polyurethane.

REFERENCE EXAMPLE 2 Water-dispersion type (emulsion) polyurethane (non-reactive type forced emulsification type) Equimolar amounts of ethylene glycol, 1.6 hexanediol and adipic acid were placed in a reactor equipped with a reflux condenser, a thermometer and a stirrer. And a solution prepared by dissolving 240 parts of polyester glycol (molecular weight: 1,000) in 120 parts of toluene, and 42 parts of 2,4-tolylene diisocyanate and 2,6-tolylene diisocyanate are added thereto. An 80:20 mixture and 0.1 part of dibutyltin laurate as a catalyst were added, and a urethanization reaction was carried out at 75 to 85 ° C. for 2 hours to prepare a prepolymer. Next, a solution obtained by adding and mixing 10 parts of an emulsifier (surfactant) polyoxyethylene nonylphenyl ether and 30 parts of hexamethylene diamine as a cross-linking agent to 550 parts of warm water while stirring at a high speed was added, and then toluene was removed under reduced pressure. Thus, a water-dispersible emulsion of polyurethane was obtained.

Reference Example 3 Water-dispersed (emulsion) polyurethane (non-reactive, self-emulsifying) = anionic polytetramethylene glycol (molecular weight: 1,000) 25
0 parts, isophorone diisocyanate 125 parts, dimethylolpropionic acid 25 parts and methyl ethyl ketone 110
The part was placed in a reactor equipped with a reflux condenser, a thermometer, and a stirrer, and a urethanization reaction was performed at 75 to 85 ° C. for 4 hours to prepare a prepolymer. Then triethylamine 1
After neutralization by adding 8 parts, 585 parts of distilled water to which 5 parts of diethylenetriamine was added was added, and then methyl ethyl ketone was removed under reduced pressure to obtain a polyurethane aqueous solution.

Reference Example 4 Water-dispersed (emulsion) polyurethane (non-reactive self-emulsifying type) = cationic bisphenol A propylene oxide adduct (hydroxyl value 3
15) was heated to 100 ° C. and dehydrated under reduced pressure.
Part is placed in a reactor equipped with a reflux condenser, a thermometer and a stirrer, and 100 parts of a mixture of methyl ethyl ketone and tolylene diisocyanate (ratio of 2,4 and 2,6 80:20) 11
Five parts were added and reacted at 70 ° C. for 4 hours to obtain a urethane prepolymer solution containing 8.4% free isocyanate groups.

On the other hand, 490 parts of methyl ethyl ketone and 40 parts of diethylenetriamine were placed in another flask,
The mixture is mixed at 0 ° C to 40 ° C, and 320 parts of the urethane prepolymer solution is gradually added to the solution with stirring over 40 minutes. Subsequently, 160 parts of methyl ethyl ketone was added to dilute the mixture, and the mixture was reacted at 50 ° C. for 30 minutes. To this reaction solution, 100 parts of water and 18 parts of epichlorohydrin were added, reacted at 50 ° C. for 1 hour, 43 parts of a 70% aqueous solution of glycolic acid and 700 parts of water were added, and then methyl ethyl ketone was removed under reduced pressure. Thus, a stable polyurethane emulsion having a resin content of 30% was obtained.

Reference Example 5 Reactive water-soluble polyurethane (self-emulsifying type) Nonionic surfactant 110 having an average molecular weight of 450 obtained by adding 5 mol of ethylene oxide to nonylphenol 110
42 parts of hexamethylene diisocyanate was added to
The reaction was performed at 85 to 90 ° C. for 1 hour. As a result, a urethane prepolymer having a free isocyanate group content of 6.8 was obtained. The prepolymer is cooled to 50 ° C. and dioxane 30
To adjust the viscosity, and add 35% aqueous sodium bisulfite solution 7
4 parts were added and stirred. The mixture was reacted for 20 minutes to obtain a viscous liquid. To this was added 100 parts of water to obtain an aqueous solution of anionic reactive polyurethane having a solid content of about 50%.

REFERENCE EXAMPLE 6 Reactive water-dispersible (emulsion) polyurethane (forced emulsification type) A block copolymer type polyether diol (OHV 46.000) having an average molecular weight of 2,400 by adding ethylene oxide to polypropylene glycol having an average molecular weight of 1200.
7) 21 parts and adipic acid-1,6 hexanediol-
Neopentyl glycol-based (molar ratio 10: 7: 4) polyester diol (OHV45.1, AV2.4) 56
Parts of the above four compounds of 100 parts by weight, and 3 parts of 1.6 hexanediol and 20 parts of hexamethylene diisocyanate.
The reaction was carried out at 05 ° C. for 1 hour in a nitrogen stream. NCO / OH
Ratio -2.05, free NCO, theoretical value 5.13%, measured value 5.01%, oxyethylene chain content in the prepolymer was 10.1%. The obtained prepolymer was cooled to 40 ° C., 20 parts of dioxane was added to adjust the viscosity, and 65 parts of a 25% aqueous sodium bisulfite solution at 40 ° C. was added thereto, and the mixture was stirred well. The mixture formed a uniform, high viscosity, water-in-oil emulsion in about 5 minutes. When the stirring was continued for 15 minutes, the viscosity suddenly decreased. After adding 200 parts of water, a complete oil-in-water emulsion (solid content: about 30%) was obtained.

[0062]

[Processing method of fiber cloth] Examples 1 to 23 JIS as it is without stretching or shrinking the fabric
-Large cut and marked so that the L-1042-1986G method can be measured.

The treating agent was added at 4% by weight based on the weight of the fabric, and warm water was added to obtain a treating agent solution having a concentration of about 0.3%.
The liquid temperature is set to 40 ° C., and the operation is started by putting the liquid in a household electric washing machine together with the cloth to be treated. After stirring for 5 minutes, 1
This was left for 0 minutes, and this was repeated twice, for a total of 30 minutes. After draining, it was rinsed for 3 minutes in place of fresh water at room temperature, lightly dehydrated (with about 30% water content), hung and dried, and finished with a dry iron at an appropriate temperature of the fiber. The amount of the treating agent is usually 0.5 to 10% based on the weight of the fibrous material.

Comparative Examples 1 to 7 The treatment was carried out in the same manner as in the Examples, except that the treating agent was not added and only warm water (40 ° C.) was used.

[0065]

[Test method for shrinkage of fiber cloth] Washing machine: JIS-L-10
42-1986 and JIS-L-0217-1976
No.103 method.

How to wash (wash with water): Add water at a liquid temperature of 40 ° C. to the top of the water tank of the electric washing machine for home use, and add a synthetic detergent for clothing at a ratio of 2 g to 1 liter of water. And dissolve to form a washing liquid. A load cloth is put into the washing liquid so that the bath ratio becomes 1:30, and the water flow is weakened to start the operation. After the treatment for 5 minutes, the operation was stopped and dehydrated (about 30% water was contained in the load cloth). Then, the water was replaced with fresh water, rinsed for 2 minutes at the same bath ratio, and then dehydrated (load cloth). This was repeated twice. After that, it was hung and dried to stretch wrinkles and then lightly pulled. Next, dry iron finishing was performed at an appropriate temperature of the fiber.

Hand washing: JIS-L-1042-1986
And JIS-L-0217-1976-No. 106 method.

A washing liquid was prepared by adding 2 g / l of a weakly alkaline or neutral detergent.

Pressing and washing for 2 minutes → pressing and squeezing → rinsing → dehydrating machine dehydration (water content 30%) → hanging and drying wrinkles (pulling lightly) → sun drying → dry iron finish.

Test cloth: JIS-L-1042-1986
25cm x 25cm (width x width)
Length), and three test pieces were used. After the operation, the test piece is set to a standard state, and then placed on a flat table, and the length (mm) of each of the three length measuring sections in the warp yarn direction and the weft yarn direction is measured, excluding unnatural wrinkles and tension. (Up to integer places).

[0071]

[Calculation of shrinkage] 3 each in the warp and weft directions
The average value of the lengths of the three measurement sections is obtained, the shrinkage is calculated by the following equation, and the average value of three test pieces in each of the warp yarn direction and the weft yarn direction is obtained (up to one decimal place).

[0072]

(Equation 1)

Here, L = length of the length measuring section before processing (mm) L ′ = length of the length measuring section after processing (mm) Remarks: When the shrinkage ratio is negative, elongation is shown.

[0074]

[Change rate] The change in length caused by the treatment of the fiber cloth with the present treatment agent was based on the test cloth of the test method for the shrinkage rate.

[0075]

[Calculation of change rate] 3 each for warp and weft directions
The average value of the lengths of the three measurement sections is determined, the rate of change is calculated by the following equation, and the average value of three test pieces in each of the warp direction and the weft direction is obtained (up to one decimal place).

[0076]

(Equation 2)

Where l = length of the length measurement section of the treatment agent (mm) l '= length of the length measurement section after processing (mm) Remarks: When the rate of change is negative, elongation is indicated.

Various physical properties of cloth treated with this treating agent and untreated cloth [Test method] ○ Tensile strength and elongation test JIS-L-1096-1990 General fabric test method 6, 12, 1, (A) method ( In accordance with the strip method), using a constant-speed extension type testing machine, pulling speed 20 cm / min, test width 5 cm, gripping interval 20 cm ○ Pilling test (A) method JIS-L-1076-1985 6.1 Pilling test for woven fabric and knitted fabric According to the method (A) method, using an ICI type testing machine, testing time 10 hours ○ Bending test KES-FB ₂ using a pure bending testing machine, SENS 2 × 1, test dimensions 20 cm × 20 cm, direction vertical, horizontal ○ Compression test KES- FB ₃ Compression tester used, SENS 2 × 5 Lowering speed of pressure plate 1 mm / 50 sec, area of pressure plate 2
cm ² (circular) Maximum deformation amount 5 mm The results of treating the fiber cloth are shown in Tables 2 (1) and 2 (2) and 3 (1) and 2 (3).

Table 2 (1) to (4): Change ratio, shrinkage ratio of fiber cloth which was subjected to shrinkage prevention treatment by changing the composition of the treating agent
Table 3 (1)-(2); Test results of various physical properties of fiber cloth treated for shrinkage prevention

[0080]

[Table 2]

[0081]

[Table 3]

[0082]

[Table 4]

[0083]

[Table 5]

[0084]

[Table 6]

[0085]

[Table 7]

[0086]

[Table 8]

[0087]

[Table 9]

Table 4 shows the effect of preventing shrinkage when washing is repeated and the effect of reprocessing with the present treatment agent thereafter.

[0089]

[Table 10]

(Washing test of knitted fabrics and sewn products) Wool and animal hair products (knitted fabrics) such as sweaters, cardigans, under trousers, and mufflers, overcoats, suits (up and down) (men's)
Wool fabrics such as wool and skirts (female figures), blended products such as wool fabrics and chemical fibers, and silk ties and scarves.
Cotton and linen shirts, feather products, etc. were washed with water. As a result, no shrinkage occurred, and cleaning was performed more clearly than dry cleaning. In addition, the texture was good, and some elongation was recognized rather than shrinking, and sufficient dimensional stability was obtained by washing with water. In particular, the coarser stitches that were shrunk by wearing extended better and could be restored to their original dimensions. Some products showed slight discoloration and darkening, but none were significantly inferior.

The test results are shown in Table 5.

[0092] Table 5: Results of washing test of knitted fabric, woven fabric, etc. Examples 24 to 48

[0093]

[Treatment method] Washing test for knitted and sewn products Weigh the knitted and sewn products to be treated. A stock solution of this treating agent is added to the product weight, and 3 to 5% by weight depending on the degree of the stain and the thickness of the cloth, and the same amount of a synthetic detergent for clothing are added and mixed, and the concentration is about 0.15%. Solution. The aqueous solution is set at 40 ° C., and the product to be washed is pushed down and sunk to the extent that it is hidden below the surface of the water in a container, gently rubbed and washed (in a washing machine, put in a net and rotated for 5 minutes), and then immersed for 30 minutes. After draining, the plate was rinsed twice with warm water at 40 ° C.
It was dehydrated to a water content of about 30% and hung. Immediately afterwards, it was lightly pulled to dry wrinkles and the like and dried in the sun. Thereafter, iron finishing was performed at an appropriate temperature of the fiber. The dimensions before and after the treatment were measured and recorded each time.

[0094]

[Table 11]

[0095]

[Table 12]

[0096]

Industrial Applicability The present invention provides natural fibers such as animal hair, wool, silk, hemp, cotton and the like, and woven fabrics obtained by blending natural fibers and synthetic fibers.
This is to impart dimensional stability and shrink resistance after washing with water without changing the texture of a knitted fabric, nonwoven fabric, or the like.

Continuation of the front page (72) Inventor Ikumi Onuki 1-28-605 Sodegaura, Narashino City, Chiba Prefecture (72) Inventor Tomoya Ishiyama 1-28-29-801 Hongo, Bunkyo-ku, Tokyo (56) References JP 51-50000 (JP, A) JP-A-51-55499 (JP, A) JP-A-48-41092 (JP, A)

Claims (2)

(57) [Claims] 1. A fibrous material treating agent composition in which the ratio of each component based on the sum of components a), b), c) and d) is 100% by weight. a) Component: water-soluble and / or water-dispersible polyurethane 20 to 99.4% by weight b) Component: Aluminum salt or zirconium salt 0.3 to 15% c) Component: Surfactant 0.3 to 30% d ) Ingredient: Acrylic dispersant 0-40〃 2. A method for imparting shrink resistance and dimensional stability to a fibrous material, comprising treating the fibrous material with the treating agent composition according to claim 1 and drying the fibrous material.