JP3277096B2 - Manufacturing method of post cure products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a post-cure product, and more particularly to a method of manufacturing a post-cure product in which wrinkles generated during resin processing or sewing are not left.

[0002]

2. Description of the Related Art A permanent press (PP) process in which pleats are required to be pleated and flat parts are less likely to wrinkle, so that clothes are repeatedly worn and the initial condition is maintained even after washing. Since the 1960s, products have been on the market, and in recent years, further studies have been made on shape memory clothing and the like. As an example of permanent press processing, there is a post cure method (Koratron method). In this method, after dipping in a resin solution, the resin is dried at a temperature at which the reaction of the resin does not proceed, and then sensitized.
The woven fabric is sent to a sewing factory, cut and sewn, shaped by a press machine, and finally heat-treated in a curing oven to form a product (U.S.P. 2,976).
4,432).

[0003]

However, in such a post-curing method, the sensitized fabric is not immediately cut, sewn, pressed, and cured, but is cut, sewn, pressed, and separated at a certain interval.
Due to the curing, the wrinkles generated when applying the resin or sewing are fixed because the resin gradually reacts on the fiber and cannot be corrected in the subsequent process. there were.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and is a simple and efficient method of obtaining a post-cure product in which wrinkles generated when a resin is applied or sewn do not remain. The purpose is to provide a simple method.

[0005]

To achieve the above object, the present invention has the following arrangement. That is, the first invention is to provide a fibrous structure containing a cellulosic fiber with a resin in an amount of 40 to 70% of the total amount of the resin finally applied, heat-treat the resin, and then finally apply the resin. The gist of the present invention is a method of manufacturing a post-cured product, which comprises applying a resin in an amount of 30 to 60% of the total amount of the resin to be made, and thereafter performing cutting, sewing, pressing, and heat treatment. A resin is applied to a fibrous structure containing cellulosic fibers, and then 40 to 80% of the applied resin
The present invention provides a method for producing a post-cured product, wherein a heat treatment is performed under the condition of crosslinking, followed by cutting, sewing, pressing and heat treatment.

Hereinafter, the present invention will be described in detail.

Specific examples of the cellulosic fibers used in the present invention include cellulosic fibers such as cotton and hemp, and regenerated cellulosic fibers such as rayon, cupra, polynosic, and purified cellulosic fibers (trade name: Tencel). Can be Such cellulosic fibers can be used alone or as a blend,
It may be mixed with other fibers by cross knitting, and in the case of mixing, it is preferable to contain 50% by weight or more of cellulosic fibers. Examples of the fiber structure include a woven fabric, a knitted fabric, and a nonwoven fabric. The fibrous structure is subjected to preparation processing such as sardine baking, desizing, scouring, and bleaching in a usual manner, and then, if necessary, to dyeing and printing in a usual manner. Manufacture post cure products.

The resin used in the present invention is a reactive resin which reacts with cellulosic fibers, such as glyoxal, dimethylhydroxyethylene urea, dimethylol propylene urea, dimethylol urone, dimethylol triazine, dimethylol ethylene urea. And water-soluble urethane prepolymers having a blocked isocyanate group that regenerates two or more isocyanate groups. In addition to the resin, a catalyst and, if necessary, a softener, a strength improver, a hand control agent Alternatively, a dye fixing agent or the like may be used.

In the first method of the present invention, a fibrous structure containing cellulosic fibers is first applied with a resin in an amount of 40 to 70% of the total amount of the resin finally applied. If the resin amount is less than 40% of the total amount of the resin finally applied, wrinkles generated when the resin is applied or sewn will remain on the product, while the resin finally applied When the resin amount exceeds 70% of the total of the above, the pleating property becomes inferior and the product becomes a pre-cure product rather than a post-cure product. The application method includes a pad method, a kiss roll method, and the like. The amount of the resin finally applied is preferably about 3 to 15% by weight based on the weight of the fiber structure.

After the application, a heat treatment is performed, and the heat treatment is performed under the condition that almost all of the applied resin is crosslinked. Specifically, heat treatment with dry heat at 130 to 180 ° C. for 2 to 5 minutes may, for example, be mentioned.

After the heat treatment, 30% of the total resin finally applied to the fibrous structure containing cellulosic fibers is obtained.
量 60%. If the amount of resin is less than 30% of the total amount of the resin finally applied, the pleating property becomes inferior, and it becomes a pre-cured product rather than a post-cured product, while 60% of the total amount of the resin finally applied. When the amount of the resin exceeds the above range, wrinkles generated when the resin is applied or sewn will remain on the product. In addition, a pad method, a kiss roll method, etc. are mentioned as a giving method.

Thereafter, cutting and sewing are performed by a known method,
Pressing is performed at about 190 ° C. for about 10 to 30 seconds, and conditions under which almost all of the applied resin is crosslinked, for example, heat treatment is performed at 130 to 180 ° C. for 2 to 5 minutes to form a product.

In the second method of the present invention, first, a resin is applied to a fibrous structure containing cellulosic fibers. Examples of the application method include a pad method and a kiss roll method.
The amount of resin to be applied is 3 to
About 15% by weight is preferable.

After the application, heat treatment is performed under the condition that 40 to 80% of the applied resin is crosslinked. Specifically, at 150 ° C.,
For example, treatment with dry heat for 2 minutes can be mentioned. When heat-treated under the condition that less than 40% of the applied resin is crosslinked,
Wrinkles generated when the resin is applied or sewn will remain on the product. On the other hand, when the resin is heat-treated under the condition of crosslinking more than 80% of the applied resin, the pleating property is deteriorated. It is a pre-cure product rather than a post-cure product.

Thereafter, cutting and sewing are performed by a known method.
Pressing is performed at about 190 ° C. for about 10 to 30 seconds, and conditions under which almost all of the applied resin is crosslinked, for example, heat treatment is performed at 130 to 180 ° C. for 2 to 5 minutes to form a product.

[0016]

Hereinafter, the present invention will be described in detail with reference to Examples.
The present invention is not limited to these. In addition, the test method based on the numerical value in an Example is as follows. (1) Tear strength JIS L-1096 D method (2) Tensile strength JIS L-1096 D method (3) Wrinkle resistance JIS L-1096 B method (4) W & W property AATCC-124-1973 method (5) Wrinkle recovery The recovery state of wrinkles that were artificially wrinkled was visually observed by 10 professional inspectors.
：: good, Δ: slightly poor, ×: poor. (6) Pleatability The state of the pleats applied by the dry heat press is visually observed by 10 professional inspectors.
Δ: Slightly poor, ×: Judged as poor.

Example 1 In this example, as a fiber structure containing cellulosic fibers, a cotton having a warp density of 131 yarns / inch and a weft density of 69 yarns / inch consisting of 80-count double yarn and 80-double weft yarn was used. A plain weave fabric was used. This plain fabric is baked,
After pretreatment of desizing, scouring and bleaching, 180 g / l of glyoxal resin (Sumitex Resin NS-19, manufactured by Sumitomo Chemical Co., Ltd., active ingredient 45%), magnesium chloride complex salt catalyst (Sumitex Accelerator X
-80, manufactured by Sumitomo Chemical Co., Ltd., active ingredient 12%) 54 g /
l, amino silicone softener (Nikka Silicon AM-2)
02, manufactured by Nikka Chemical Co., Ltd.) A processing solution consisting of 30 g / l was padded to a pickup rate of 80%, dried at 100 ° C. for 2 minutes, applied with 60% of the total resin finally applied, and subsequently heated at 150 ° C. For 3 minutes with dry heat to crosslink 99% or more of the applied resin. Next, 120 g / l of glyoxal resin (Sumitec Resin NS-19, manufactured by Sumitomo Chemical Co., Ltd., active ingredient 45%), and magnesium chloride complex salt catalyst (Sumitex Accelerator X-80, manufactured by Sumitomo Chemical Co., Ltd., effective Component 12%)
A processing solution consisting of 36 g / l, formalin catcher (Fine-Tex FCK, manufactured by Dainippon Ink Co., Ltd.) was padded to a pickup rate of 80%, dried at 100 ° C. for 2 minutes, and finally added to the total amount of resin to be applied. Of 40% was given. Next, the plain woven fabric is artificially wrinkled, left for 14 days at a temperature of 40 ° C. and a humidity of 80%, and then cut and sewn, treated with a dry heat press at 180 ° C. for 15 seconds, and subsequently at 150 ° C. for 3 seconds. The resulting resin was heat-treated with dry heat for one minute, and 99% or more of the applied resin was crosslinked to obtain the product of Example 1.

Comparative Example 1 The same plain fabric as in Example 1 was subjected to the same pretreatment as in Example 1, and then a glyoxal resin (Sumitec Resin NS-19, manufactured by Sumitomo Chemical Co., Ltd., active ingredient 45%) ) 30
0g / l, magnesium chloride complex salt catalyst (Sumitex Seccelerator X-80, manufactured by Sumitomo Chemical Co., Ltd.
Active ingredient 12%) 90 g / l, amino silicone softener (Nikka Silicon AM-202, manufactured by Nikka Chemical Co., Ltd.) 30 g
/ L, formalin catcher (Finetex FC
K, manufactured by Dainippon Ink Co., Ltd.) was padded with a treatment liquid of 5 g / l to a pickup rate of 80% and dried at 100 ° C. for 2 minutes. Next, the plain fabric is wrinkled artificially, left for 14 days at a temperature of 40 ° C. and a humidity of 80%, and then cut and sewn, treated with a dry heat press at 180 ° C. for 15 seconds, and subsequently at 150 ° C.
For 3 minutes with dry heat to crosslink 99% or more of the applied resin to obtain a product of Comparative Example 1.

Table 1 shows the tear strength, tensile strength, wrinkle resistance, W & W property, wrinkle recovery property, and pleating property of the products obtained in Example 1 and Comparative Example 1.

[0020]

[Table 1]

As is clear from Table 1, the product obtained in Example 1 has the same performance as the product obtained in Comparative Example 1 in tear strength, tensile strength, wrinkle resistance, W & W property, pleating property and the like. In addition, it is found that wrinkles generated during the processing step are excellent in recoverability.

Example 2 The same plain fabric as in Example 1 was subjected to the same pretreatment as in Example 1, and then a glyoxal resin (Sumitec Resin NS-19, manufactured by Sumitomo Chemical Co., Ltd., active ingredient 45%) ) 30
0 g / l, magnesium chloride complex salt catalyst (Sumitex Accelerator X-80, manufactured by Sumitomo Chemical Co., Ltd.
Active ingredient 12%) 90 g / l, amino silicone softener (Nikka Silicon AM-202, manufactured by Nikka Chemical Co., Ltd.) 30 g
/ L, formalin catcher (Finetex FC
(K, manufactured by Dainippon Ink Co., Ltd.) was padded with a treatment liquid of 5 g / l to a pickup rate of 80%, dried at 100 ° C. for 2 minutes, and subsequently heat-treated at 150 ° C. for 2 minutes with dry heat.
In addition, 72% of the applied resin was crosslinked. Next, after the plain fabric is wrinkled artificially, the temperature is 40 ° C. and the humidity is 80%.
For 14 days at 180 ° C with a dry heat press after cutting and sewing.
For 15 seconds, followed by a heat treatment at 150 ° C. for 3 minutes with dry heat to crosslink 99% or more of the applied resin to obtain the product of Example 2.

Example 3 In the same manner as in Example 2, except that the heat treatment after applying the resin was performed at 150 ° C. for 1 minute with dry heat, the same treatment as in Example 2 was performed. I got After the heat treatment, 51% of the applied resin was crosslinked.

Example 4 In the same manner as in Example 2, except that the heat treatment after applying the resin was performed at 150 ° C. for 1.5 minutes with dry heat, the same procedure as in Example 2 was performed. Got the product. After the heat treatment, 60% of the applied resin was crosslinked.

Comparative Example 2 A product of Comparative Example 2 was obtained in the same manner as in Example 2, except that the heat treatment after the application of the resin was not performed.

Comparative Example 3 In the same manner as in Example 2, except that the heat treatment after applying the resin was performed at 150 ° C. for 3 minutes with dry heat, the same process as in Example 2 was performed. I got After the heat treatment, 99% or more of the applied resin was crosslinked.

Example 2, Example 3, Example 4, Comparative Example 2, Comparative Example 2
Table 2 shows & W properties, wrinkle recovery properties, and pleating properties.

[0028]

[Table 2]

As is clear from Table 2, the products obtained in Examples 2, 3 and 4 are different from the products obtained in Comparative Examples 2 and 3 in tear strength, tensile strength and wrinkle resistance. It can be seen that they have the same performance in terms of properties, W & W properties, etc., and are excellent in recoverability of wrinkles generated during the processing step and in pleating properties.

[0030]

As described in detail above, the post-cured product obtained by the method of the present invention has no wrinkles generated during resin processing or sewing, and has excellent anti-wrinkle properties and W & W properties. There is no decrease in strength and the texture is good, and it is extremely useful for casual uses such as shirts and pants, uniforms, and the like.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) D06M 15/00-15/72

Claims (2)

(57) [Claims] The present invention relates to a fibrous structure containing cellulosic fibers, which is provided with a resin in an amount of 40 to 70% of the total amount of the resin finally applied, heat-treated, and then the total amount of the resin finally applied. A method for producing a post-cured product, comprising applying a resin in an amount of 30 to 60% of the above, and thereafter performing cutting and sewing, pressing, and heat treatment. 2. A resin is applied to a fibrous structure containing cellulosic fibers, and then 40 to 80% of the applied resin.
A method for producing a post-cured product, comprising heat-treating under conditions that allow crosslinking, followed by cutting, sewing, pressing and heat-treating.