JP3604163B2 - Fabric with improved texture and method for producing the same - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a fabric with improved texture and a method for producing the same. The present invention particularly relates to a fabric having a shiny feeling and a dry feeling and a method for producing the same.
[0002]
[Prior art]
Conventionally, various methods have been implemented as a method of changing the texture of a woven fabric at a dyeing stage. For example, in the case of polyester fabrics, it is industrially practiced to reduce the thickness of yarns and widen the space between fibers by using a caustic soda to reduce the weight of the fabric so that the structure has flexibility and flexibility.
[0003]
Further, as another method for softening the fabric, a method of impregnating the fabric with a silicone resin, a fatty acid derivative, a polyethylene glycol derivative, or the like to reduce the friction between fibers to make the fabric soft has been widely practiced.
As a method for hardening the fabric, a method of impregnating the fabric with a melamine resin, a urethane resin, or the like and drying the fabric is industrially practiced.
[0004]
Furthermore, as other things, the volume feeling of the fabric is increased by impregnating the urethane resin, or a method of obtaining a suede-like texture, and one side of the fabric is coated with a urethane resin or an acrylic resin using a knife coater or the like, A method of changing the texture at the same time as imparting a waterproof function and a method of simultaneously applying a hard urethane resin and silica fine particles to impart a hemp-like and dry texture to the polyester have been performed. Attempts have also been made to fix fibroin.
[0005]
In addition to treatment with such chemicals, as a mechanical method, soften with a kneading machine such as a tumbler machine, or scrape the surface with sandpaper to generate fine fluff, and feel like a peach skin. There are also widely used a method of giving a hair, a method of giving a volume with a raising machine, and giving a volume.
Such a method is also applied to fibers other than polyester, for example, cotton, silk, rayon and the like.
[0006]
[Problems to be solved by the invention]
As described above, since the development of synthetic fibers such as polyester fibers, many attempts have been made to imitate the good points of natural fibers. Among them, attempts have been made to impart a shiny taste and a dry feeling.
Natural fibers vary in thickness in the length direction of the fibers, have a randomly changing cross-sectional shape, and have an appropriate twist. As a method of imparting the characteristics of such natural fibers at the stage of manufacturing synthetic fibers, for example, a thick and thin yarn having a thickness that randomly changes in the length direction of the fibers is manufactured, and a fabric with a feeling of heat is manufactured. ing.
[0007]
Although a woven fabric obtained from this type of fiber has a dry sensation due to a change in the cross section of the fiber, a waxy feeling and a slimy feeling peculiar to the synthetic fiber remain.
Attempts have also been made to knead an inorganic substance in the yarn manufacturing stage, perform weight reduction with caustic soda in the finishing stage of the product, make fine irregularities on the surface, and dry the touch.
[0008]
In this way, by adding some ingenuity at the yarn manufacturing stage, those with a crisp taste and a dry feeling can be seen to have sufficient effects on durability, but lack versatility and further improve texture. It was desired.
There is also a method called pseudo-hemp processing in which a hemp-like texture is given at the stage of dyeing the woven fabric. There is no fixed processing condition as this pseudo-hemp processing, but in general, the woven fabric is impregnated with an aqueous dispersion solution in which a hard resin such as urethane, acrylic resin, and vinyl acetate resin and colloidal silica are used in combination, dried, and hardened. Gives a dry feel. However, the texture obtained by this technique lacks practical durability because the resin applied to the surface of the fabric easily falls off by washing or the like.
[0009]
Therefore, it is an object of the present invention to provide a highly practical fabric that imparts unprecedented high dryness and shine to the woven fabric at the finishing stage of the dyeing process, and that can withstand repeated washing.
[0010]
[Means for Solving the Problems]
The present invention for solving the above problems, to provide a fabric which is characterized in that particulate matter organic or inorganic only the convex portion of the warp yarn and the weft yarn woven material are overlapped are attached.
The present invention also fabric to the mixed resin solution of the particulate matter and a solvent-based synthetic resin, by using a gravure roll coater, characterized in that only applied to the convex portion warp yarn and the weft yarn overlap of woven material And a method for producing the same.
[0011]
The woven fabric useful in the present invention may be composed of various fibers consisting of filaments or spans, and examples of the material include chemical fibers such as polyester and polyamide. Natural fibers may be used from the viewpoint of changing the texture of the natural fibers. Furthermore, these mixed fibers and mixed woven products may be used, and there is no particular limitation. The woven structure includes plain weave, twill, satin and the like, and is not particularly limited.
[0012]
Examples of the organic or inorganic fine particles used in the present invention include organic materials which are pulverized into fine particles such as hemp, silk protein, and cotton. Examples of the inorganic fine particles include silica, zinc oxide, calcium carbonate, and aluminum hydroxide. These fine particles can be selected according to the desired texture.
[0013]
Further, the particle diameter of the fine particles is preferably 40 microns or less. If it exceeds 40 microns, a streak-like defect occurs during gravure processing.
As the adhesive made of the solvent-based synthetic resin used here, urethane resin, epoxy resin, melamine resin, acrylic resin, or the like can be used, and is not particularly limited. Preferably, it is a urethane resin.
[0014]
Examples of the organic solvent include dimethylformamide, methyl ethyl ketone, isopropyl alcohol, and toluene, and these can be used alone or as a mixture.
Further, in order to increase the adhesive strength to the fiber, it is preferable to use an isocyanate-based crosslinking agent in the mixed resin solution.
[0015]
Next, a method for producing the fabric of the present invention will be described.
First, a mixed resin solution is prepared. As a method of dispersing the fine particles in the resin, it is preferable that the fine particles are wetted with a diluting solvent, and then the resin is mixed and stirred.
Next, the mixed resin solution of the particulate matter and the synthetic resin is applied only to the convex portion where the warp yarn and the weft yarn of the woven fabric are overlapped. As a method for applying the mixed resin solution, a method using a gravure roll coater is preferable, and a gravure roll mesh is used. Is preferably in the range of 60 to 140 mesh. If the amount of the resin adhered is too large, the texture becomes coarse and hard, which is not suitable for clothing. If the amount is too small, the texture cannot be changed.
[0016]
Next, the woven fabric to which the mixed resin solution has been applied is dried and set to obtain a fabric with improved texture.
[0017]
【The invention's effect】
The advantages of dispersing the particulate matter of the present invention in a solvent type urethane resin and applying it to the fabric by gravure are as follows. As a method in a conventional dyeing process, there is a method of dispersing a particulate matter in water and incorporating the same in a fiber. However, generally, such particulate matter is a polymer material dissolved or dispersed in water (for example, alginic acid, guar gum carboxymethyl cellulose, polyvinyl alcohol, a water-soluble urethane resin, a water-soluble acrylic resin, a water-dispersed acrylic resin, Water-dispersed urethane resin, water-dispersed vinyl acetate resin, etc.) are used together to increase the viscosity of the aqueous solution. However, depending on the type of the particulate matter, the aqueous solution is stably dispersed when the viscosity is high, but the dispersion state cannot be stably maintained when the concentration of the polymer material is low and the viscosity decreases. Therefore, even when the dispersion solution of the aqueous particulate matter lacking in uniformity and stability is applied to the fabric, it cannot be uniformly attached.
[0018]
In addition, in the case where the woven fabric is impregnated with the dispersion solution of the particulate matter in a water-based stable state using a mangle device or the like, even if there is no problem with the application, since the concentration of the polymer material soluble in water is high, the It is too hard for texture and does not drip as clothing.
Furthermore, even when such a water-soluble polymer material is used in combination with a cross-linking agent and applied to a woven fabric, the polymer material easily swells in water, and thus has a disadvantage that it is easily dropped off by washing or the like.
[0019]
On the other hand, a resin soluble in a solvent is hydrophobic and has high affinity with synthetic fibers such as polyester. Increase.
Further, an advantage of using a gravure roll as a means for applying the mixed resin solution is that the texture of the surface is changed without adhering the resin containing the particulate matter only to the surface of the woven fabric without hardening the whole.
[0020]
Also, when the particulate matter is applied using a solvent-based mixed resin solution, a certain degree of viscosity is required for stable dispersion, and therefore, the solid content of the synthetic resin cannot be extremely reduced. Such mixed resin solution is included in the entire woven fabric with a mangle or the like, and when applied to the woven fabric, the entanglement point between the fibers and the yarn is fixed by the resin, so that the texture becomes very hard, as in the present invention. It is not possible to obtain a fabric having an appropriate shiny feeling and dry feeling without making the texture hard.
[0021]
Therefore, according to the present invention, it is possible to provide a highly practical fabric that imparts an unprecedented appropriate dry feeling and shiny feeling to the woven fabric in the finishing stage of the dyeing process, and can withstand repeated washing. Was.
[0022]
【Example】
Hereinafter, the present invention will be further described with reference to examples.
Example 1
The polyester filament fabric (Shangtan) was scoured and dyed in beige color and then finished.
[0023]
Next, as a mixed resin solution for gravure treatment, a fine particle-dispersed urethane resin was prepared at the following compounding ratio.
Hemp powder (manufactured by Tosco, particle size 40 microns or less) 20 parts Isopropyl alcohol 20 parts Resid LU3810 (urethane resin manufactured by Dainichi Seika) 100 parts Resamine UD crosslinker (isocyanate resin manufactured by Dainichi Seika) 1 part Gravure mesh of this resin liquid The polyester fabric was applied using a 75 mesh roll. The surface texture of the obtained fabric was extremely dry and shiny compared to the untreated product.
[0024]
In order to further examine the durability, home washing was performed five times, but the surface texture did not change.
[0025]
Example 2
The polyester spun fabric (plain fabric) was scoured, weight-reduced and then dyed yellow. Next, as a mixed resin solution for gravure treatment, a fine particle-dispersed urethane resin was prepared at the following compounding ratio.
20 parts of protein powder (manufactured by Idemitsu Petrochemical, particle size 10 microns or less)
Toluene 20 parts Resid LU1500 (Urethane resin manufactured by Dainichi Seika) 100 parts Coronate HL (Isocyanate crosslinking agent manufactured by Nippon Polyurethane Industry) 1 part This resin solution was applied to a polyester fabric using a gravure mesh roll 125 mesh. The surface texture of the obtained fabric was extremely dry and shiny compared to the untreated product.
[0026]
Example 3
The polyester filament fabric (twill) was scoured and dyed light green. Next, as a mixed resin solution for gravure treatment, a fine particle-dispersed melamine resin was prepared at the following compounding ratio.
20 parts of Sook lens KD211 (silica / zinc oxide manufactured by Lhasa Industries, particle diameter 20 microns or less)
Toluene 20 parts Super Beckamine J820-60 100 parts (Melamine resin manufactured by Dai Nippon Ink)
P198 (Dai Nippon Ink reaction catalyst) 1 part This resin solution was applied to a polyester fabric using a gravure mesh roll 140 mesh. The surface texture of the obtained fabric was extremely dry and shiny compared to the untreated product.

Claims (3)

Fabric, characterized in that the particulate matter organic or inorganic only the convex portion of the warp yarn and the weft yarn woven material are overlapped are attached. The fabric according to claim 1, wherein the organic or inorganic particulate matter is fixed to the fiber using a synthetic resin as an adhesive. The mixed resin solution of the particulate matter and a solvent-based synthetic resin, by using a gravure roll coater method of a fabric, characterized in that only applied to the convex portion warp yarn and the weft yarn overlap of woven material.