JPS59112085A - Dyeing treatment of high molecular elastomer-containing fiber sheet - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for treating a fiber sheet containing a polymeric elastomer,
Specifically, the present invention relates to a method for improving the color fastness of a fiber sheet made of polyamide fibers and an elastomer polymer.

Conventionally, the treatment method for polyamide fibers after dyeing them with acid dyes is to treat them in a tannic acid bath.

Subsequently, a method of treatment with tartarite or a method of treatment in a bath containing a synthetic tannic acid compound is adopted. However, even if a fiber sheet made of polyamide synthetic fiber and polymeric elastomer is dyed with an acid dye and then subjected to a dye fixation treatment using conventional methods, a satisfactory dye fixation effect cannot be obtained. Washing fastness is extremely poor.

Furthermore, when conventional polyamide synthetic fibers are dyed with metal complex dyes, they have satisfactory color fastness, so dye fixing treatment is not generally carried out after dyeing. However,
In the case of fiber sheets made of polyamide synthetic fibers and polymeric elastomers, satisfactory color fastness cannot be obtained even when dyed with such metal complex dyes.

When dyeing such a fiber sheet with an acid dye or a metal complex dye, the adsorption rate of the acid dye or the metal complex dye to the polymeric elastomer may be faster than that of the polyamide fiber component in the low temperature region of the dyeing process. Once the dye has been adsorbed to the polymeric elastomer component, it does not easily transfer to the polyamide fiber component even if the dye reaches the high temperature range necessary for dyeing the polyamide fiber component. Thus.

When the predetermined dyeing process is completed, the amount of acid dye or metal complex dye dyed on the polymer elasticity and body components is equal to or larger than that on the polyamide fiber component.

Even if such a dyed sheet is subjected to a dye fixation treatment using a synthetic tannic acid compound or the like, fixation between the polyamide fiber component and the dye is achieved, but the fixation effect between the polymeric elastomer component and the dye is extremely weak.

Each time the sheet is washed with water or washed repeatedly, the dye adsorbed to the polymeric elastomer component falls off without limit, resulting in a deterioration in the color fastness of the dyed sheet.

The inventors of the present invention conducted extensive research to solve these problems, and as a result, they discovered an effective means for improving color fastness. That is, after dyeing a polyamide fiber sheet containing a polymeric elastomer with an acid dye or a metal complex dye, the dye dyed on the polyamide fiber component is fixed under specific conditions, and then two selected surfactants are dyed. A dyed sheet with good color fastness is obtained by removing most of the dye adsorbed to the polymeric elastomer component by treatment with a bath.

The gist of the present invention is to dye a fiber sheet made of polyamide fibers and polymeric elastomer with an acid dye or a metal complex dye, and then fix the dye on the polyamide fiber component with a synthetic tannin dye fixing agent. This is a dyeing treatment method for a fiber sheet containing a polymeric elastomer, which is characterized in that most of the dye adsorbed to the polymeric elastomer component is subsequently removed using a surfactant.

The effects of the present invention can be achieved by treating with a synthetic tannin dye fixing agent after dyeing and then treating with a surfactant.

This is something you can get for the first time. Good effects cannot be obtained by reversing the order of image processing or performing only one type of processing.

Next, the contents of the two inventions will be explained in detail.

The fiber sheet to be dyed in the present invention is made of polyamide fibers and polymeric elastic material.

Here, the polyamide fibers include nylon 6I, nylon 66, nylon 11. Nylon 610. Consists of aromatic polyamide and modified fibers thereof.

Examples of elastic polymers include urethane-based, acrylic-based, silicone-based, and fluorine-based resins. In particular, polyurethane-based resins include various polyether-based, polyester-based, and polyetherester-based resins. It is obtained by the reaction of a chain diol (polyester or polyether type) and a low molecular weight chain extender (glycol, diamine, etc.).

The polymer elastomer content of the polymer elastomer-containing sheet is 3 to 3.
Although the content is within the range of 90 wt%, the effect of the present invention is more pronounced as the content of the elastic polymer increases.

Examples of the acidic dyes according to the present invention include leveling acid dyes, . Examples include metal complex dyes,
Practically speaking, milling acid dyes and 1:2 type metal complex dyes are particularly effective.

Dye fixation treatments for polyamide fiber components include a two-bath process in which treatment is performed with tannic acid and further treatment with tartar stone, and a one-bath process in which synthetic tannic acid is used as a fixing agent. Tannic acid-tartar treatment A fixing method using a one-bath process is preferable because of the problem of the two-bath process requiring two hours of labor and the problem of texture hardening. Examples of synthetic tannic acids include polyhydric phenol sulfonic acid derivatives, aromatic polymer derivatives, polyhydric phenol derivatives, and oxyfuric acid salt condensates.

The dye fixation treatment on the polyamide fiber component of the polymer elastomer-containing fiber sheet is preferably carried out under the following conditions regardless of the dyeing density. That is, the concentration of the dye fixing agent is 6 to 10% based on the weight of the fiber sheet containing the polymeric elastomer.
%, the treatment temperature is 70'C or higher, and the treatment time is 20 to 60 minutes.

Surfactants include cations, anions, nonions,
Examples include amphoteric surfactants, but those that are effective in selectively removing dyes adsorbed to polymeric elastomer components include:
It is preferable to use one or more of anionic, nonionic, and amphoteric surfactants. In particular, nonionic and amphoteric surfactants exhibit excellent effects. The concentration of the surfactant used is 2 to 6% based on the weight of the polymer elastomer-containing fiber sheet, and the processing temperature is 50 to 30'C+.
A treatment time of 20 to 60 minutes is recommended. After treatment with such a surfactant, washing with water is performed.

The present invention provides extremely good fastness. A fiber sheet containing a polymeric elastomer with high product stability can be obtained.

The present invention will be specifically explained below with reference to Examples, but is not limited to these in any way.

Example 1 Nylon fiber 75 with a single yarn fineness of 0.05 denier.

A gray material of suede-like artificial leather made of 25% polyurethane was placed in a jet dyeing machine at a water temperature of 30°C, and the following r and n were applied.
Dyeing and treatment were carried out using each dyeing method (method 2) (bath ratio 1:20).

Construction method (method of the present invention) The following dyeing aids and dyes (1) to (3) were added in order.

(1) Albegax A [Ciba-GeL
Leveling agent made by g7 company] 1.00Wf (2) Ammonium sulfate 1. OOg/J
+31 C, engineering, acid Blue 171
10.00% OMf staining conditions
100'c x 60 min SO'A for 20 min, then washed with water and further Bisnol A-30 (alkylamine type nonionic surfactant manufactured by Ipposha Yushi Co., Ltd.) 10
Treated with OWf aqueous solution at 60-Q for 20 minutes. After that, it is washed in hot water and removed from the dyeing machine.

Dry.

Method (Comparative Example 1) Method (Comparative Example 2) Table 1 shows the interfacial toughness results after dyeing with a metal complex dye using the method.

Table 1 Seki/S,! : is a value indicating the color density determined from the reflectance (R) by the Kubelka-Munk Ayan number.

It is obtained from the general formula below.

(Reflectance that takes a value of RED ~ 1) The higher the value, the darker the color, and the lower the value, the lighter the color.

Fastness determination is based on AATCC: 61-19 stipulated in the law.
According to 65.

From this result9, the method of the present invention has a dye concentration of 10% OW.
Despite the dark color of f, the washing fastness was very good, and compared to the method of Comparative Example 1 in which no surfactant treatment was performed, the fastness was significantly improved. Still comparative example 2
In this case, since the dye is treated with a surfactant before fixing, the dye falls off from both the polymer elastic body and the fiber side, and the dyed fabric becomes stained.
was 14.8, which made the color extremely pale, and no improvement in fastness was observed.

Patent Applicant Toshi Co., Ltd. Company Procedures Amendment Written by 158°3.23 Commissioner of the Japan Patent Office Kazuo Wakasugi1, Indication of Case 1982 Patent Application No. 2221482, Name of Invention Polymer Elasticity Body-containing e&cloth receipt dyeing treatment method 3, Person making the amendment 5, Number of inventions increased by the amendment None 6, "Detailed explanation of the invention" column in the specification to be amended 1) Page 7 Correct "2-3" in the fourth line to [2-100J.

Claims (1)

[Claims] A fiber sheet made of polyamide fibers and a polymeric elastomer is dyed with an acid dye or a metal complex dye.The dye is fixed on the polyamide fiber component using an i1 synthetic tanned dye fixing agent, and then a surfactant is used. A dyeing treatment method for a fiber sheet containing a polymeric elastomer, characterized by removing dyes adsorbed to the polymeric elastomer component.