阅读说明：本技术 一种棉织物丙烯酸系列整理剂原位免烫方法 (Cotton fabric acrylic acid series finishing agent in-situ non-ironing method ) 是由 王运利 郭恒 徐卫林 张稳 胡金榜 黄宏博 韩宗保 于 2019-12-06 设计创作，主要内容包括：本发明涉及纺织技术领域,公开了一种棉织物丙烯酸系列整理剂原位免烫方法。该方法包括以下步骤：(1)将乙醇加入水中,加入棉织物,在40-60℃下搅拌5-30分钟；(2)加入丙烯酸酯,在40-60℃下搅拌10-60分钟；(3)在超声搅拌下,依次加入不饱和酸盐和过硫酸盐,升温至80-100℃,并保温反应10-60分钟；(4)将上述处理后的棉织物取出、水洗、晾干。采用本发明所述的原位免烫方法整理后得到的棉织物不仅具有较好的免烫、防皱性能,而且还具有较高的强力保留。(The invention relates to the technical field of textile, and discloses an in-situ non-ironing method for a cotton fabric acrylic acid series finishing agent. The method comprises the following steps: (1) adding ethanol into water, adding cotton fabric, and stirring at 40-60 deg.C for 5-30 min; (2) adding acrylate, and stirring at 40-60 deg.C for 10-60 min; (3) under ultrasonic agitation, adding unsaturated acid salt and persulfate in turn, heating to 80-100 ℃, and reacting for 10-60 minutes under heat preservation; (4) taking out the treated cotton fabric, washing with water and airing. The cotton fabric obtained after the finishing by the in-situ non-ironing method has better non-ironing and crease-resisting performances and higher strength retention.)

1. An in-situ non-ironing method for cotton fabric acrylic acid series finishing agent is characterized by comprising the following steps:

(1) adding ethanol into water, adding cotton fabric, and stirring at 40-60 deg.C for 5-30 min;

(2) adding acrylate, and stirring at 40-60 deg.C for 10-60 min;

(3) under ultrasonic agitation, adding unsaturated acid salt and persulfate in turn, heating to 80-100 ℃, and reacting for 10-60 minutes under heat preservation;

(4) taking out the treated cotton fabric, washing with water and airing.

2. The method according to claim 1, wherein the ethanol is used in an amount of 1 to 20 parts by weight, relative to 100 parts by weight of water, in step (1).

3. The process according to claim 1 or 2, wherein in step (1), the weight ratio of cotton fabric to water is 1: 3-10.

4. The method according to claim 1, wherein the acrylate is used in an amount of 5 to 20 parts by weight, relative to 100 parts by weight of water, in step (2).

5. The method of claim 1 or 4, wherein the acrylate is at least one of dimethylaminoethyl methacrylate, hydroxyethyl methacrylate, ethyl acrylate, methyl methacrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate, isooctyl acrylate, isooctyl methacrylate, n-octyl acrylate, and n-octyl methacrylate.

6. The method of claim 5, wherein the acrylate is a mixture of dimethylaminoethyl methacrylate, hydroxyethyl methacrylate and methyl methacrylate.

7. The method of claim 6, wherein the weight ratio of dimethylaminoethyl methacrylate, hydroxyethyl methacrylate and methyl methacrylate in the mixture of dimethylaminoethyl methacrylate, hydroxyethyl methacrylate and methyl methacrylate is 1: 0.5-2: 0.5-2.

8. The method according to claim 1, wherein the unsaturated acid salt is used in an amount of 0.1 to 10 parts by weight, relative to 100 parts by weight of water, in step (3).

9. The method of claim 1 or 8, wherein the unsaturated acid salt is at least one of a maleate salt, a fumarate salt, and an itaconate salt.

10. The method according to claim 1, wherein, in the step (3), the persulfate is used in an amount of 0.1 to 10 parts by weight relative to 100 parts by weight of water;

preferably, the persulfate is ammonium persulfate.

Technical Field

The invention relates to the technical field of spinning, in particular to an in-situ non-ironing method for a cotton fabric acrylic acid series finishing agent.

Background

The pure cotton fabric is produced by using cotton as a raw material through a textile process, and has the characteristics of moisture absorption, moisture retention, heat resistance, alkali resistance, sanitation and the like. The pure cotton fabric is comfortable to wear and good in skin friendliness, is widely favored by people, and is particularly considered as the safest fabric in infant clothes. However, pure cotton fabrics have poor elasticity, are prone to wrinkling and deformation during wearing and washing, and require frequent ironing or wrinkle-resistant non-ironing treatment. At present, the most industrially applied non-ironing method is as follows: cotton fabrics were padded in a permanent press finish several times, then dewatered and dried (e.g. CN 105200777A). However, in the existing non-ironing method for the cotton fabric, the strength of the cotton fabric is greatly damaged in the processes of multiple padding and drying.

Disclosure of Invention

The invention aims to overcome the defect of large fabric strength damage of the existing cotton fabric non-ironing finishing method and provides an in-situ non-ironing method of a cotton fabric acrylic acid series finishing agent.

In order to realize the aim, the invention provides an in-situ non-ironing method of a cotton fabric acrylic acid series finishing agent, which comprises the following steps:

(1) adding ethanol into water, adding cotton fabric, and stirring at 40-60 deg.C for 5-30 min;

(2) adding acrylate, and stirring at 40-60 deg.C for 10-60 min;

(3) under ultrasonic agitation, adding unsaturated acid salt and persulfate in turn, heating to 80-100 ℃, and reacting for 10-60 minutes under heat preservation;

(4) taking out the treated cotton fabric, washing with water and airing.

Preferably, in the step (1), the ethanol is used in an amount of 1 to 20 parts by weight, relative to 100 parts by weight of water.

Preferably, in step (1), the weight ratio of cotton fabric to water is 1: 3-10.

Preferably, in step (2), the acrylate is used in an amount of 5 to 20 parts by weight, relative to 100 parts by weight of water.

Preferably, the acrylate is at least one of dimethylaminoethyl methacrylate, hydroxyethyl methacrylate, ethyl acrylate, methyl methacrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate, isooctyl acrylate, isooctyl methacrylate, n-octyl acrylate, and n-octyl methacrylate.

Further preferably, the acrylate is a mixture of dimethylaminoethyl methacrylate, hydroxyethyl methacrylate and methyl methacrylate.

Still more preferably, in the mixture of dimethylaminoethyl methacrylate, hydroxyethyl methacrylate and methyl methacrylate, the weight ratio of dimethylaminoethyl methacrylate, hydroxyethyl methacrylate and methyl methacrylate is 1: 0.5-2: 0.5-2.

Preferably, in step (3), the unsaturated acid salt is used in an amount of 0.1 to 10 parts by weight, relative to 100 parts by weight of water.

Preferably, the unsaturated acid salt is at least one of maleate, fumarate and itaconate.

Preferably, in the step (3), the persulfate is used in an amount of 0.1 to 10 parts by weight relative to 100 parts by weight of water.

Preferably, the persulfate is ammonium persulfate.

The cotton fabric acrylic acid series finishing agent in-situ non-ironing method has the following advantages:

in the non-ironing treatment process, the added ethanol can better permeate the cotton fabric, the added unsaturated acid salt can play a role of a catalyst to catalyze the cross-linking reaction between the acrylate and the cotton fiber, and the added persulfate can initiate the cross-linking reaction, so that the method can realize the in-situ non-ironing of the cotton fabric, and the treated cotton fabric not only has better non-ironing and crease-resistant performances, but also has higher strength retention (namely, the strength damage of the fabric is smaller).

Detailed Description

The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.

The in-situ non-ironing method of the cotton fabric acrylic acid series finishing agent comprises the following steps:

(1) adding ethanol into water, adding cotton fabric, and stirring at 40-60 deg.C for 5-30 min;

(2) adding acrylate, and stirring at 40-60 deg.C for 10-60 min;

(3) under ultrasonic agitation, adding unsaturated acid salt and persulfate in turn, heating to 80-100 ℃, and reacting for 10-60 minutes under heat preservation;

(4) taking out the treated cotton fabric, washing with water and airing.

In the method, in the step (1), the cotton fabric and the ethanol water solution are stirred and mixed, so that the ethanol is fully permeated into the cotton fabric, and the subsequent reaction is more favorably carried out.

In step (1), the ethanol may be used in an amount of 1 to 20 parts by weight, preferably 3 to 18 parts by weight, more preferably 5 to 15 parts by weight, and still more preferably 10 to 12 parts by weight, relative to 100 parts by weight of water.

In step (1), the weight ratio of cotton fabric to water may be 1: 3-10, preferably 1: 4-8, more preferably 1: 5-7.

In the method, in the step (2), the acrylic ester is added and then stirred and mixed for a period of time at a proper temperature, so that the acrylic ester is fully dispersed in the system and permeates into the cotton fabric, and the subsequent reaction is facilitated.

In step (2), the acrylate may be used in an amount of 5 to 20 parts by weight, preferably 6 to 18 parts by weight, more preferably 8 to 16 parts by weight, and still more preferably 10 to 15 parts by weight, relative to 100 parts by weight of water.

In the present invention, the acrylate may be at least one of dimethylaminoethyl methacrylate, hydroxyethyl methacrylate, ethyl acrylate, methyl methacrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate, isooctyl acrylate, isooctyl methacrylate, n-octyl acrylate, and n-octyl methacrylate. In a more preferred embodiment, the acrylate is a mixture of dimethylaminoethyl methacrylate, hydroxyethyl methacrylate and methyl methacrylate. Still more preferably, in the mixture of dimethylaminoethyl methacrylate, hydroxyethyl methacrylate and methyl methacrylate, the weight ratio of dimethylaminoethyl methacrylate, hydroxyethyl methacrylate and methyl methacrylate is 1: 0.5-2: 0.5-2, preferably 1: 0.8-1.2: 0.8-1.2. According to the preferred embodiment, the cotton fabric obtained after finishing has better non-ironing and crease-resisting properties.

In the method, in the step (3), under the existence of unsaturated acid salt and persulfate, acrylic ester and cotton fibers of the cotton fabric are subjected to a crosslinking reaction, so that in-situ non-ironing is realized.

In step (3), the unsaturated acid salt may be used in an amount of 0.1 to 10 parts by weight, preferably 0.5 to 8 parts by weight, more preferably 1 to 5 parts by weight, and still more preferably 2 to 4 parts by weight, relative to 100 parts by weight of water.

In the present invention, the unsaturated acid salt is preferably at least one of maleate, fumarate and itaconate.

In the step (3), the persulfate may be used in an amount of 0.1 to 10 parts by weight, preferably 0.5 to 8 parts by weight, more preferably 1 to 5 parts by weight, and still more preferably 2 to 4 parts by weight, relative to 100 parts by weight of water.

In the present invention, the persulfate is preferably ammonium persulfate.

In the method of the present invention, in the step (4), the cotton fabric is taken out, washed with water, and dried in the air, which can be performed according to the conventional manner in the art, and will not be described herein again.

The present invention will be described in detail by way of examples, but the scope of the present invention is not limited thereto.