JPS6314110B2 - - Google Patents

Description

[Detailed description of the invention]

INDUSTRIAL APPLICATION FIELD The present invention relates to a method for processing acrylic fiber products using ethylene carbonate. Prior Art When acrylic fibers are treated with specific solvents or swelling agents (eg, ethylene carbonate, dimethylformamide, etc.), the morphology of the fibers can be changed in various ways. Among them, ethylene carbonate can produce a linen-like finish or a certain three-dimensional effect when treated or partially treated with pile fabrics such as acrylic carpets, mats, hook drag, moquettes, and blankets. That is,
It is known that by applying a treatment liquid or printing paste containing ethylene carbonate to these products and heating them, it is possible to finish the product with a linen-like texture or to dissolve the pile in the printed area and form valleys. but,
When printing, natural or synthetic glue is used together with ethylene carbonate to obtain the viscosity required for printing, which causes the troughs of the melted pile to solidify and the glue to stick. becomes impossible to remove,
As a result, the troughs lose their soft texture as fibers, and the appearance deteriorates significantly. In addition, linen-like finishing using a diluted ethylene carbonate solution lacks reproducibility and results in variations in the finish texture from process to process. At the same time, the unique fluffy texture of acrylic fibers is lost, and the processing conditions The current situation is that if a mistake is made, the appearance will be significantly impaired and the fibers will eventually solidify. OBJECTS OF THE INVENTION An object of the present invention is to provide a method for processing acrylic fiber products into a wide variety of products using ethylene carbonate as described above, without impairing the texture and appearance of the products. Structure of the Invention The method of the present invention includes attaching a processing agent containing A: ethylene carbonate, B: propylene carbonate, C: polyhydric alcohol fatty acid ester and/or fatty acid amide urea condensed oligomer to at least a portion of an acrylic fiber product; It is characterized by dry heat or steam heat treatment. That is, in the present invention, by mixing solid ethylene carbonate with a melting point of 35.5°C or higher with propion carbonate of the same family, it can be easily used as a liquid even at room temperature, and by using the compound C above in combination, It can improve the viscosity of the treatment liquid and homogenize the action of ethylene carbonate on acrylic fibers, making it possible to finish acrylic fiber products with a nice linen-like finish or texture. Furthermore, in the present invention, by changing the amounts of each component A, B, and C, the processing agent can be made into a paste without using a paste that would deteriorate the texture of the product, and the treatment agent can be made into a paste. It enables printing, and the processing agent does not remain after the printing process and does not impair the feel of the product. In addition, the above-mentioned processing agent further includes urea and glycols such as ethylene glycol and propylene glycol, or methyl alcohol, ethyl alcohol,
It is preferable to also contain lower alcohols such as isopropyl alcohol. Due to the presence of these additives, components A and B can be prepared in advance into a water-miscible liquid mixture, and this liquid mixture and component C can be mixed in an appropriate ratio depending on the purpose during processing. Then, by adding water and other additives such as dyes or emulsifiers, the treatment agent can be used in liquid form or in paste form. This liquid mixture may generally consist of 10 to 90 parts by weight of component A, 90 to 10 parts by weight of component B, 0 to 20 parts of urea, and 0 to 20 parts of glycols or alcohols. ~15 urea 1 to 12 parts by weight glycols or alcohols 1 to 12 parts is particularly easy to handle. The combined ratio of this liquid mixture and C component is, for example, when printing the treatment agent on acrylic fiber products, the above mixture: 20 to 70% by weight, C component: 2 to 20%, water and other additives, and the rest. It is preferable to form it into a paste, and when treating acrylic fiber products by immersing them in a treatment agent, the above mixture and component C are mixed in proportions of 1 to 50% and 0.1 to 3%, respectively, based on the weight of the fibers. It is preferable to prepare a processing solution containing Furthermore, when spraying the treatment agent onto acrylic fiber products, it is preferable to form a treatment solution containing the above mixture at a ratio of 5 to 200 g/C component and 1 to 60 g/C component. In the present invention, by printing an acrylic fiber product such as a pile fabric or a raised fabric with a processing agent, it is possible to obtain an uneven pattern fabric in which the pile or fluff in the printed area is partially dissolved. As for the heat treatment after printing, dry heat or wet heat treatment is generally applied at 80 to 105°C for 1 to 20 minutes. In addition, when spraying or dipping treatment using a liquid treatment agent, 80 to 80% after treatment
Dry heat treatment at 105°C for 5 minutes to 5 hours can give acrylic fiber products a fluffy, linen-like finish. The areas treated with the treatment agent of the present invention have improved dyeability and can be dyed at low temperatures, so they can be dyed with other printing pastes or piece-dyed or yarn-dyed. Products with complex patterns can also be obtained. The acrylic fiber products treated in the present invention are:
Textile products containing acrylic fibers, such as yarn,
It may be a knitted fabric, a woven fabric, etc., and may be a blended fabric with other fibers, a mixed weave, or a mixed knitted fabric. In addition, the polyhydric alcohol component of the polyhydric alcohol fatty acid ester as component C contained in the processing agent is usually polyalkylene glycol containing an alkylene unit having 2 to 4 carbon atoms and having an average molecular weight of 100 to 1000, glycerin, pentaerythritol, sorbitol, and It is preferably selected from the group consisting of sucrose, and the fatty acid component of the polyhydric alcohol fatty acid ester and fatty acid amide urea condensed oligomer is generally a saturated fatty acid having 15 to 18 carbon atoms. Example 1 Toleron (acrylic fiber manufactured by Toray Industries, Inc.) 100
A paste consisting of the following composition was printed in a pattern on a beige-colored brushed blanket of 35% ethylene carbonate 35 parts propylene carbonate 8 parts urea 4 parts isopropyl alcohol 4 parts Compound (1) (stearic acid monoester of sorbitan ) 5 parts Compound (2) (stearic acid amide urea condensate) 2 parts Meiselin H100*1 2 parts Sumya Acrylic Blue N-3GL*2 2 parts Water 38 parts Steam treatment at 95°C for 15 minutes, wash with water, Dry. As a result, the pile in the stamped area dissolved and a unique uneven pattern was formed with the valleys dyed blue.
The texture of the product did not change much overall and was soft. Comparative Example 1 The following printing paste was prepared and processed under the same conditions as in Example 1. Ethylene carbonate 32 parts 40℃ hot water 32 parts Indarka PA/30 (5%) *3 30 parts Sumiacryl Blue N-3GL *2 2 parts The product has a unique uneven pattern with blue dyed valleys. However, the penetration of the glue into the pile portion was poor, the dyeing was uneven, and the texture was extremely rough and hard. Example 2 A paste consisting of the following composition was printed in a pattern on a 100% cashmilon moquette (acrylic fiber manufactured by Asahi Kasei Corporation) dyed in dark brown and having a pile length of 3 mm. Ethylene carbonate 35 parts Propylene carbonate 15 parts Urea 10 Parts Ethylene glycol 10 parts Compound (2) (palmitic acid amide urea condensate) 8 parts Meiselin H-100*1 2 parts Water 20 parts Steam treatment was performed at 95°C for 10 minutes, washed with water, and dried. As a result, the pile in the printed area was dissolved, forming an uneven pattern with a nice texture. Example 3 A paste consisting of the following composition was printed in a pattern on a 100% cut pile carpet (pile length 7 mm) of Veslon (acrylic fiber manufactured by Toho Rayon Co., Ltd.) dyed green, and ethylene carbonate 30 parts propylene Carbonate 15 parts Urea 3 parts Ethylcellosolve 5 parts Compound (1) (myristic acid monoester of pentaerythritol) 5 parts Meiselin H100*1 3 parts Sumiacryl Black FFP*4 5 parts Water 37 parts At 98℃ Steam treatment was performed for 15 minutes, followed by washing with water and drying.
As a result, the printed area was dyed black and the pile was dissolved. A unique uneven pattern with a nice texture was formed throughout. Example 4 (a) A paste consisting of the following composition was printed on a 100% undyed white brushed Bonnell blanket (acrylic fiber manufactured by Mitsubishi Rayon Co., Ltd.): ethylene carbonate 30 parts propylene carbonate 8 parts urea 3 parts isopropyl alcohol 5 Part compound (1) (polyoxyethylene stearate) Part three part compound (2) (stearic acid amide urea condensate) 2 parts Meiselin H100*1 3 parts Water 46 parts Steamed at 97℃ for 20 minutes , washed with water, and dehydrated to obtain a product having an uneven pattern in which the printed portion was formed in the troughs. (b) The product in (a) is made of diacrylic yellow 3RL-F.
*5 1% (% of fiber weight) Bathing 1:
30. Immerse in a bath adjusted to PH4 with acetic acid and heat to 80℃.
Staining was carried out for 45 minutes, washed with water, and dried. As a result, the parts that became valleys due to the printing of the paste were dyed much darker than the parts that were not printed, and a product was obtained that had an uneven pattern dyed in shading with a good texture. It was done. (c) Immerse the product in (a) in the same dye bath as in (b) above,
Staining was carried out at 60°C for 45 minutes, water-stained, and dried.
As a result, only the parts where the troughs were previously printed were dyed, and the other parts were not dyed, resulting in a product with a white and yellow uneven pattern. Example 5 100% EXLAN (acrylic fiber manufactured by Japan EXLAN Co., Ltd.) cut pile doormat (pile length 1 cm, light green dyed product) was printed with three kinds of pastes with the following compositions in different patterns,

【table】

[Table] Steam treatment was performed at 98°C for 20 minutes, washed with water, and dried. As a result, there are various interesting irregularities with three different hues and three types of valleys, including a pale green unprinted area, a pale green valley of the same color, and a valley dyed navy blue and red. A product with a pattern was obtained. Example 6 A blue dyed Cashmiron (acrylic fiber manufactured by Asahi Kasei Corporation) 60/Kanekalon (acrylic fiber manufactured by Kanekabuchi Chemical Co., Ltd.) 40 blended loop pile hook (pile weight 1000 g/m ² ) was made from the following composition. Spray the following treatment liquid (amount applied, 100% of the pile weight): 25 g of ethylene carbonate, 6 g of propylene carbonate, 3 g of urea, 3 g of ethyl alcohol, 2 g of compound (2) (oleic acid amide urea condensate), Meiselin H100* 12g/L A dry heat treatment was performed at 95°C for 20 minutes, followed by washing with water and drying. As a result, the spray treatment caused the pile to swell and dissolve, resulting in a fluffier, linen-like, slightly harder texture than the untreated product. Example 7 Undyed yarn (10 count double yarn) of 100% Kanekalon (acrylic fiber manufactured by Kanekabuchi Chemical Co., Ltd.) was immersed in a treatment solution with the following composition at room temperature for 15 minutes at a bath ratio of 1:15, and ethylene was added. Carbonate 6% owf Propylene carbonate 3% ow, f. Urea 0.1% owf Butyl cellulosolve 0.5% owf Compound (1) (oleic acid monoester of glycerin) 3% owf Meiselin H100*1 2% owf Excess liquid After dehydration, it was subjected to dry heat treatment at 100°C for 20 minutes and washed with water. Next, Kayacryl Yellow 5GL *0.5%
owf, Kayacrylic Red GL 0.05% owf Kayacrylic Blue GRL 0.05% Immerse in a dye bath using owf at a bath ratio of 1:15 and adjusted to pH 4 with acetic acid.
Staining was performed at 70°C for 45 minutes. As a result, acrylic fibers usually do not dye at 70℃.
Despite the low-temperature dyeing process, the dye was absorbed into the fibers, and the product dyed to the specified density of hue was able to have a fluffy, linen-like hard finish overall without any damage to the threads. Here *Kayacryl Yellow 5GL, Red
GL and Blue GRL are cationic dyes for acrylic fibers manufactured by Nippon Kayaku Co., Ltd. Example 8 (a) Toleron (acrylic fiber manufactured by Toray Industries, Inc.)
70/Tetron (polyester fiber manufactured by Toray Industries, Inc.) 30 blend cut pile entrance mat (pile length 7 mm, basis weight 700 g/ ^m2 light blue dyed product), (b) Cashmilon (acrylic fiber manufactured by Asahi Kasei Corporation) 55/Bemberg (Asahi Kasei Corporation) Regenerated cellulose fiber manufactured by Co., Ltd.) 45 blended cut pile carpet (pile length 5 mm, basis weight 60 g/m ² light green dyed product), (c) Kanekalon (acrylic fiber manufactured by Kanebuchi Kagaku Kogyo Co., Ltd.) 60/polyamide fiber 40 blended pile fabric moquette (pile length 3 mm, light gray dyed product) The above three types of samples were treated in the same manner as in Example 1. In each product, the acrylic fiber part contained in the printed part dissolves and forms valleys, and only those parts are dyed blue, resulting in a unique three-dimensional pattern with marbled shades of blue. Ta. (*1) Nonionic surfactant manufactured by Meisei Chemical Co., Ltd. (*2) Cationic dye manufactured by Sumitomo Chemical Co., Ltd. (*3) Guar gum-based glue manufactured by Cesarpinia (*4) Sumitomo Chemical Cationic dyes manufactured by Mitsubishi Chemical Industries, Ltd. (*5) Cationic dyes manufactured by Hodogaya Chemical Industries, Ltd. (*7) Cationic dyes manufactured by Hodogaya Chemical Industries, Ltd. Effects of dye invention The present invention uses ethylene carbonate in combination with a special compound to uniformly act on acrylic fiber products in either liquid or paste form, and produces high-quality acrylic fibers. It is possible to create linen-like finishes and textured textile products. Furthermore, the treatment of the present invention improves the dyeability of acrylic fiber products and enables low-temperature dyeing, making it possible to dye and finish linen tatami with a good texture without damaging the fibers.

Claims (1)

[Scope of Claims] 1 A treatment agent containing ethylene carbonate, B propylene carbonate, and C polyhydric alcohol fatty acid ester and/or fatty acid amide urea condensed oligomer is attached to at least a part of an acrylic fiber product, and then dried. A method for processing acrylic fiber products characterized by heat or steam treatment. 2. The processing method according to claim 1, wherein the processing agent contains urea and glycols or lower alcohols. 3 The polyhydric alcohol of the polyhydric alcohol fatty acid ester is a polyalkylene glycol with an average molecular weight of 100 to 1000 containing an alkylene unit having 2 to 4 carbon atoms,
glycerin, pentaerythritol, sorbitol,
3. The processing method according to claim 1 or 2, wherein the compound is a compound selected from the group consisting of sorbitan and sucrose. 4 The fatty acid of the polyhydric alcohol fatty acid ester and fatty acid amide urea condensed oligomer has 15 or more carbon atoms.
The processing method according to any one of claims 1 to 3, characterized in that the fatty acid is a saturated fatty acid having an amino acid content of 18. 5. The processing method according to any one of claims 1 to 4, wherein the processing agent contains an emulsifier and a dye. 6. Any one of claims 1 to 5, characterized in that the above treatment agent is formed into a paste, printed on an acrylic fiber product, and subjected to a steaming treatment at 80 to 105°C for 1 to 20 minutes. or the processing method described in item 1. 7 Form the above treatment agent into a liquid, spray or immerse it on acrylic fiber products, and heat it at 80 to 105°C for 5 minutes or more.
The processing method according to any one of claims 1 to 5, characterized in that dry heat treatment is performed for 5 hours. 8. The method according to any one of claims 1 to 7, characterized in that a liquid mixture containing components A and B is formed in advance, and the mixture and component C are mixed together before use. Processing method. 9. The processing method according to claim 8, wherein the liquid mixture contains urea and glycols or lower alcohols.