JP6028240B2 - Method of manufacturing form-stabilized apparel product and apparel product manufactured using the same - Google Patents

Description

The present invention relates to a method for producing a form-stabilized apparel product and a form-stabilized apparel product produced using the method. More specifically, the present invention relates to an apparel product and a method for producing the apparel product characterized in that the form is stabilized by connecting and fixing contact portions between fibers of the apparel product through chemical bonds.

The apparel products mentioned here are natural fiber products such as cotton, hemp, silk, wool, alpaca, Angola, cashmere, mohair, recycled fiber products such as rayon, cupra, polynosic, acetate, triacetate, promix, etc. Semi-synthetic fiber products, synthetic fiber products such as nylon, polyester, acrylic, polyvinyl chloride and polyurethane, inorganic fiber products such as glass and metal, and paper products are also included.

As a conventional technique, there is a sun folize processing in which the unstable part of the cotton fiber which is the cause of shrinkage is stabilized by a physical method and the shrinkage is limited to 1% in both length and width. Further, there is a resin processing in which a resin is infiltrated and fixed to an unstable part of cotton fiber, and the fiber hardly moves even if water is absorbed to prevent shrinkage. Furthermore, there is a liquid ammonia process that chemically modifies cotton fibers with an ammonia liquid liquefied at minus 33.4 degrees.

In particular, the form-stabilization process using liquid ammonia is a process that can be worn with no ironing, without shrinking or wrinkling the product after washing shirts and work clothes. After sewing, it is a method (SSP process) which sets with a hot press and stabilizes a form (patent document 1). There is also a method (VP processing) in which formalin gas is injected into a product after sewing and the gas is permeated into the fiber to stabilize the form (Patent Document 2).

JP 2003-113579 A Japanese Patent Laid-Open No. 7-316945

However, the texture of both methods is significantly worse than before processing. Further, since reactive gas is used, it is dangerous and the load is not highly recommended in terms of environment.

In view of the drawbacks of the prior art as described above, the present invention provides a method for producing an apparel product that does not impair the texture and uses a reactive gas without using a reactive gas as in the prior art, and uses it. The object is to provide manufactured apparel products.

In order to achieve the above object, the first invention specifically provided is a functional group (B) which reacts at least the fiber surface of the apparel product with a thermal or photothermal reactive functional group (A) and an active hydrogen group. And a process of forming a reactive organic film or a reactive monomolecular film on the surface of the fiber, and heating and contacting the organic at the contact portion between the fibers. It is a method for producing a form-stabilized apparel product, comprising a step of cross-linking the coatings with each other.

According to a second invention, in the first invention, an epoxy group, a cinnamoyl group, a chalconeyl group, or a derivative group thereof is used as the thermal or photothermal reactive functional group (A). It is.

According to a third invention, in the second invention, the heat- or photothermal-reactive functional group (A) is an epoxy group or a derivative group thereof, and is heated in air or while adding water vapor, A method for producing an apparel product, characterized in that a cross-linking reaction is performed at a contact portion between the reactive organic coatings between fibers, and an epoxy group of the organic coating or a derivative group thereof is deactivated at a non-contact portion of the organic coating. It is.

A fourth invention is a method for producing an apparel product according to the first to third inventions, wherein the organic coating on the fiber surface is a heat or photothermal reactive monomolecular film.
According to a fifth aspect of the invention, the form is stabilized, wherein at least the fiber surface is covered with an organic coating, and the fibers are bonded to each other through the coating at a portion where the organic coating contacts each other Apparel product.
A sixth invention is a form-stabilized apparel product according to the fifth invention, wherein the organic coating on the fiber surface is a monomolecular film.

As described above, according to the present invention, since the contact portions between the fibers of the apparel product are bonded and fixed to each other through a chemical bond, the texture is not impaired, and only one ironing process is performed. It has the effect of providing apparel products with excellent shape stability.

The cross-sectional conceptual diagram which expanded the fiber surface to the molecular level, in order to demonstrate the condition where the fiber surface of the apparel product of this invention is coat | covered with the heat | fever or photothermal reactivity monomolecular film. The cross-sectional conceptual diagram which expanded the surface of the fiber contact part to the molecular level in order to explain the situation where the fiber surface of the apparel product of the present invention is cross-linked via two fixed molecules at the contact part between the fibers . (A) is a photograph showing the morphological stability of the fiber immediately after ironing, and (b) after 50 regular washings.

The present invention provides a water and oil repellent antifouling apparel product excellent in form stability and a method for producing the same.

At least the fiber surface of the apparel product is brought into contact with a treatment liquid containing a solvent and a substance containing a functional group (B) that reacts with a thermal or photothermal reactive functional group (A) and an active hydrogen group, and the fiber surface At least the fiber surface is covered with an organic coating using a step of forming a reactive organic coating (monomolecular film) and a step of crosslinking the organic coating to each other at a contact portion between the fibers by heating. In addition, the present invention provides a form-stabilized apparel product characterized in that the fibers are bonded to each other through the coating at portions where the organic coatings are in contact with each other.

According to the manufacturing method, since the contact portion between the fibers of the apparel product is bonded and fixed to each other through a chemical bond, the texture is not impaired, and the form stability is excellent only by one ironing process. There is an effect that can provide apparel products.

Furthermore, since the reactive functional group is deactivated in the non-contact part during heating, there is no inconvenience when the product is worn.

Next, examples carried out for confirming the effects of the present invention will be described. In addition, these Examples are only illustrations and do not limit this invention.

First, a substance containing an alkoxysilyl group as a functional group (B) that reacts with an epoxy group, a hydrocarbon group, and an active hydrogen group as a thermal or photothermal reactive functional group (A), for example, CH ₂ OCH (CH ₂ ) _N Si (OA) ₃ (wherein the CH ₂ OCH— group represents an epoxy group, n represents an integer of 1 to 25, and A represents an alkyl group), specifically, 9,10-epoxy. Decyltrimethoxysilane (CH ₂ OCH (CH ₂ ) ₈ Si (OA) ₃ or less, represented by EDS (where the CH ₂ OCH— group represents an epoxy group)) and a non-aqueous solvent, A chemical adsorption solution was prepared by using isoparaffin and mixing at 0.03 mol / L.

Next, after preparing a polyester / cotton blend (50:50) fabric used in the cutter shirt, washing it thoroughly and drying it, in air (relative humidity 57%, 70% in another experiment) There was no problem.) This solution was applied to the surface of the sample fabric and allowed to stand for about 1 hour.

At this time, most of the isoparaffin solvent evaporates, but since the surface of the polyester or cotton fiber 1 of the fabric contains a large number of hydroxyl groups, methoxy which is a substance mainly composed of the epoxy group, hydrocarbon group and methoxysilyl group. An organic coating containing an epoxy group bonded to the surface of the fiber 1 via a siloxane (—SiO—) group 2 can be formed by a dealcoholization reaction between the silyl group and the surface hydroxyl group. Therefore, when the EDS remaining without being bonded to the fiber surface was removed by washing with a detergent, a fabric in which the fiber surface was coated with the monomolecular film 3 having an epoxy group at the end could be produced. (Figure 1)
In FIG. 1, ◯ represents the epoxy group 4. The zigzag line represents the ethylene chain 5.

  At this time, if the carbon number of the ethylene chain is 8 or more, the epoxy group 4 is mostly exposed on the fiber surface. Further, when a silanol condensation catalyst or an acid catalyst was added to the chemical adsorption solution in an amount of about 0.0003 mol / L, the adsorption reaction could be accelerated and the film production time could be shortened.

  Next, when pressing at an intermediate temperature (140 to 160 ° C.) using an iron, as shown in FIG. 2, at the portion where each fiber is in contact, the epoxy group is coupled and the fibers are cross-linked 6. Morphological stability is manifested. Here, (a) in FIG. 3 is a photograph immediately after ironing the blended fabric used as a sample, and (b) in FIG. 3 is the morphological stability of the fiber after 50 times of normal washing. It is a photograph which shows.

  At this time, in the non-contact portion between the fibers, all the epoxy groups are ring-opened, react with moisture in the air and converted to hydroxyl groups, and the film has a film thickness of about 1 nm. It wasn't.

  Here, a high temperature (180 to 210 ° C.) was good for the temperature of the iron, but there was a form-stable processing effect even at a low temperature (80 to 120 ° C.). Similar results were obtained when pressing while adding steam.

In addition, we tried various kinds of fibers, but natural fiber products such as cotton, hemp, silk, wool, alpaca, Angola, cashmere, mohair, regenerated fiber products such as rayon, cupra, polynosic, acetate, triacetate, promix, etc. The same effects were confirmed in semi-synthetic fiber products, synthetic fiber products such as nylon, polyester, acrylic, polyvinyl chloride and polyurethane, inorganic fiber products such as glass and metal, and paper products.

  In the previous examples, isoparaffin (a non-aqueous organic solvent was the same with a paraffin or a fluorinated solvent) was used as the solvent for the chemisorption solution. Even when an aqueous solvent containing a surfactant (dispersant) was used, it could be produced in the same manner.

Furthermore, similar results were obtained when an epoxy group, a cinnamoyl group, a chalconyl group, or a derivative group thereof was used as the thermal or photothermal reactive functional group (A).

DESCRIPTION OF SYMBOLS 1 Fiber surface 2 Siloxane group 3,3 'Reactive monomolecular film 4 Reactive functional group (epoxy group)
5 Reactive functional groups (epoxy groups) coupled and crosslinked

Claims (2)

At least the fiber surface of the apparel product is brought into contact with a treatment liquid containing a solvent and a substance containing a functional group (B) that reacts with a thermal or photothermal reactive functional group (A) and an active hydrogen group, and the fiber surface And a step of forming an organic film or monomolecular film having the thermal or photothermal reactive functional group (A) at the terminal, and heating to cross-link the organic film or monomolecular film at the contact portion between the fibers. In the method for producing a form-stabilized apparel product having a step of reacting , the heat- or photothermal-reactive functional group (A) is an epoxy group, and heating or heating while adding water vapor is performed between the fibers. the contact portion of the organic coating or monolayer by crosslinking the epoxy groups to each other, wherein the non-contact portion of the organic coating or monolayer is form stabilized, characterized in that to deactivate the epoxy groups Method of manufacturing the apparel products. A form-stabilized apparel product , wherein a monomolecular film having an epoxy group at a terminal is formed at least on the surface of a fiber , and the epoxy groups are coupled to each other so that fibers are bonded to each other .