阅读说明：本技术 一种复合型纺织印染助剂及其制备工艺 (Composite textile printing and dyeing auxiliary and preparation process thereof ) 是由 王笋 黄颢 郭辉 郑章平 于 2019-12-20 设计创作，主要内容包括：本发明属于纺织面料技术领域,尤其涉及一种复合型纺织印染助剂及其制备工艺。本发明通过在现有印染助剂中添加浴中防皱剂、干湿擦牢度提升剂以及提升辅助剂的方式,达到织物印染时自身防皱能力以及色牢度基础有效提高的效果。本发明具有浴中防皱剂环保且非离子方式抗皱效果好,纳米粉末添加式的干湿擦牢度提升剂提升织物色牢度基础效果明显,非离子型干湿擦牢度提升剂与浴中防皱剂相互匹配效果好,以及提升辅助剂添加进一步分散干湿擦牢度提升剂,进一步提高牢度提升效果的优点。(The invention belongs to the technical field of textile fabrics, and particularly relates to a composite textile printing and dyeing auxiliary and a preparation process thereof. According to the invention, the anti-creasing agent, the dry-wet rubbing fastness improver and the auxiliary agent are added into the existing printing and dyeing auxiliary agent, so that the effects of effectively improving the anti-creasing capability and the color fastness foundation of the fabric during printing and dyeing are achieved. The invention has the advantages that the in-bath anti-wrinkling agent is environment-friendly, the non-ionic type anti-wrinkling effect is good, the basic effect of improving the color fastness of the fabric by the nano powder adding type dry-wet rubbing fastness improving agent is obvious, the mutual matching effect of the non-ionic type dry-wet rubbing fastness improving agent and the in-bath anti-wrinkling agent is good, and the effect of improving the fastness is further improved by adding the improvement auxiliary agent to further disperse the dry-wet rubbing fastness improving agent.)

1. The composite textile printing and dyeing auxiliary comprises an adhesive, a thickening agent, a leveling agent and a color fixing agent, and is characterized in that: the dry-wet rubbing fastness improving agent comprises liquid paraffin, fatty acid sucrose polyester, hydroxyethyl ethylenediamine, silicone rubber powder, nano zinc oxide powder and nano silver powder, and the lifting auxiliary agent comprises nonionic alkynol, dimethylethanolamine, polyoxyethylene, cellulase and amylase.

2. The composite textile printing and dyeing auxiliary according to claim 1, characterized in that: the weight of the anti-creasing agent in the bath accounts for 1.5-2.5% of the total weight of the printing and dyeing auxiliary agent, the weight of the dry and wet rubbing fastness improver accounts for 3.0-4.0% of the total weight of the printing and dyeing auxiliary agent, and the weight of the lifting auxiliary agent is 25-40% of the weight of the dry and wet rubbing fastness improver.

3. The compound textile printing and dyeing auxiliary of claim 1, characterized in that the preparation process of the in-bath anti-creasing agent sequentially comprises the following steps:

s1, adding deionized water into a reaction kettle, heating to 65-75 ℃, adding toluene diisocyanate, polyether polyol, fatty alcohol-polyoxyethylene ether and isobornyl acetate, heating to 85-88 ℃, and stirring at the rotation speed of 600-850r/min for 2-6min to obtain an anti-wrinkling agent base solution;

s2, cooling the base solution of the anti-wrinkling agent to 80-82 ℃, adding deionized water, N-methyldiethanolamine and triethanolamine again, and stirring for 15-22min to obtain the anti-wrinkling agent in the high-temperature bath;

and S3, cooling the anti-creasing agent in the high-temperature bath to room temperature at a speed of not less than 15 ℃/min to obtain a finished product of the anti-creasing agent in the bath.

4. A composite textile printing and dyeing auxiliary according to claim 3, characterized in that: the in-bath anti-wrinkling agent also comprises the deionized water, the deionized water is added twice in the preparation process, and the deionized water accounting for 40-45% of the total amount is added during the preparation of the anti-wrinkling agent base solution.

5. The compound textile printing and dyeing auxiliary of claim 1, characterized in that the preparation process of the dry and wet rubbing fastness improver comprises the following steps in sequence:

s1, grinding the powder to obtain powder for supporting the lifting agent;

s2, heating and mixing to obtain a finished product of the dry and wet rubbing fastness improver;

and S3, adding a lifting assistant to obtain the compound fastness lifting agent for later use.

6. The composite textile printing and dyeing auxiliary according to claim 5, characterized in that: adding the liquid paraffin, the silicon rubber powder, the nano zinc oxide powder and the nano silver powder into a nano spherical vibration grinding machine, grinding until the weight percentage of the ultrasonic vibration screening machine passing through a 5um level reaches 98%, adding water, pressurizing, storing for 15-25min, and finally air-drying to obtain the powder for the propping of the lifting agent.

7. The composite textile printing and dyeing auxiliary according to claim 5, characterized in that: and mixing the fatty acid sucrose polyester and the hydroxyethyl ethylenediamine with the powder for supporting the improver at the temperature of 55-85 ℃ to obtain a finished product of the dry and wet rubbing fastness improver.

8. The composite textile printing and dyeing auxiliary according to claim 5, characterized in that: the lifting aid is added and mixed under the conditions that the temperature is 25-35 ℃, the stirring speed is 100-350r/min, and the cellulase and the amylase are added together finally.

9. The compound textile printing and dyeing auxiliary according to claim 1, characterized in that the in-bath anti-creasing agent comprises the following components by weight: 15-22 parts of toluene diisocyanate, 7-19 parts of polyether polyol, 5-15 parts of fatty alcohol-polyoxyethylene ether, 1-3 parts of N-methyldiethanolamine, 0.5-1.5 parts of triethanolamine, 1-2 parts of isobornyl acetate and 40-45 parts of deionized water; the dry-wet rubbing fastness improver comprises the following components in parts by weight: 7-18 parts of liquid paraffin, 15-45 parts of fatty acid sucrose polyester, 1-6 parts of hydroxyethyl ethylenediamine and 11-25 parts of silicone rubber powder, nano zinc oxide powder and nano silver powder in total.

10. A method for preparing a composite textile printing and dyeing auxiliary as claimed in claim 5, characterized by comprising the following steps in sequence: uniformly mixing the adhesive, the thickening agent, the leveling agent and the color fixing agent, heating to 45-50 ℃, preserving heat, adding the in-bath anti-wrinkling agent, stirring for 15-45min, adding the composite fastness improver, stirring for 5-8min, and cooling to obtain the printing and dyeing auxiliary agent.

Technical Field

The invention belongs to the technical field of textile fabrics, and particularly relates to a composite textile printing and dyeing auxiliary and a preparation process thereof.

Background

The textile printing and dyeing auxiliary refers to a series of auxiliary agents for further improving the printing and dyeing effect in the textile printing and dyeing process, such as a surfactant, an emulsifier, a leveling agent, a dispersing agent and the like. On the other hand, the conventional textile printing and dyeing auxiliaries mainly focus on improving the coloring effect of printing and dyeing, but pay less attention to ensuring the fabric characteristics during printing and dyeing, so that a composite textile printing and dyeing auxiliary with fabric characteristic maintaining, protecting and even improving functions is urgently needed in the market.

The Chinese patent with patent publication number CN 109056383A and publication number 2018.12.21 discloses a printing and dyeing auxiliary agent, which is prepared from the following raw materials in parts by weight: 10-15 parts of modified trihydroxymethyl acrylamide-vegetable oil copolymer, 1020-25 parts of modified polyquaternium, 70-80 parts of water and 3-5 parts of emulsifier.

However, the printing and dyeing auxiliary agent in the patent has the problem of poor fabric protection effect.

Disclosure of Invention

The invention aims to provide a composite textile printing and dyeing auxiliary and a preparation process thereof, which can achieve the effect of effectively improving the crease resistance and the color fastness base of fabrics during printing and dyeing by adding a in-bath crease-resist agent, a dry and wet rubbing fastness improver and a lifting auxiliary agent into the conventional printing and dyeing auxiliary. The invention has the advantages that the in-bath anti-wrinkling agent is environment-friendly, the non-ionic type anti-wrinkling effect is good, the basic effect of improving the color fastness of the fabric by the nano powder adding type dry-wet rubbing fastness improving agent is obvious, the mutual matching effect of the non-ionic type dry-wet rubbing fastness improving agent and the in-bath anti-wrinkling agent is good, and the effect of improving the fastness is further improved by adding the improvement auxiliary agent to further disperse the dry-wet rubbing fastness improving agent.

The technical scheme adopted by the invention for solving the problems is as follows: the composite textile printing and dyeing auxiliary comprises an adhesive, a thickening agent, a leveling agent and a color fixing agent, and further comprises an in-bath crease-resistant agent, a dry-wet rubbing fastness improver and a lifting auxiliary agent for dispersing the dry-wet rubbing fastness improver, wherein the in-bath crease-resistant agent is nonionic and comprises toluene diisocyanate, polyether polyol, fatty alcohol polyoxyethylene ether, nitrogen methyl diethanol amine, triethanolamine and isobornyl acetate, the dry-wet rubbing fastness improver comprises liquid paraffin, fatty acid sucrose polyester, hydroxyethyl ethylenediamine, silicone rubber powder, nano zinc oxide powder and nano silver powder, and the lifting auxiliary agent comprises nonionic alkynol, dimethylethanolamine, polyoxyethylene, cellulase and amylase.

In the invention, the anti-creasing agent in the bath avoids cross-linking and closing among hydroxyl groups by closing the hydroxyl groups on the fiber, so as to achieve the effect of crease resistance, so that the adding environment needs to be nonionic, otherwise, the effect of closing the hydroxyl groups is reduced, and therefore, the binder, the thickening agent, the leveling agent and the color fixing agent adopt the existing nonionic agents, and the dry and wet rubbing fastness improving agent and the improvement auxiliary agent are nonionic, so as to ensure the efficient crease resistance effect of the anti-creasing agent in the bath.

On the other hand, the dry-wet rubbing fastness improver optimizes the color fastness basis of the fabric fibers by adding powder and other modes in organic systems such as esters and the like, so that the dye is better and firmer in attaching and supporting effects, and the dry-wet rubbing fastness is improved.

The lifting auxiliary agent mainly comprises nonionic alkynol, dimethylethanolamine and polyoxyethylene, and surfactant components, dispersant components and emulsifier components which are used for uniformly dispersing the powder, and finally, the cellulase and the amylase are combined to decompose residual redundant fibers and impurities on the fabric fibers, so that the redundant fibers and the impurities are prevented from being crosslinked and polymerized with the three types of powder, the dispersing effect is further ensured, and the dry-wet rubbing fastness lifting agent is ensured to exert the maximum effect.

The further preferred technical scheme is as follows: the weight of the anti-creasing agent in the bath accounts for 1.5-2.5% of the total weight of the printing and dyeing auxiliary agent, the weight of the dry and wet rubbing fastness improver accounts for 3.0-4.0% of the total weight of the printing and dyeing auxiliary agent, and the weight of the lifting auxiliary agent is 25-40% of the weight of the dry and wet rubbing fastness improver.

The further preferable technical scheme is that the preparation process of the anti-creasing agent in the bath sequentially comprises the following steps:

s1, adding deionized water into a reaction kettle, heating to 65-75 ℃, adding toluene diisocyanate, polyether polyol, fatty alcohol-polyoxyethylene ether and isobornyl acetate, heating to 85-88 ℃, and stirring at the rotation speed of 600-850r/min for 2-6min to obtain an anti-wrinkling agent base solution;

s2, cooling the base solution of the anti-wrinkling agent to 80-82 ℃, adding deionized water, N-methyldiethanolamine and triethanolamine again, and stirring for 15-22min to obtain the anti-wrinkling agent in the high-temperature bath;

and S3, cooling the anti-creasing agent in the high-temperature bath to room temperature at a speed of not less than 15 ℃/min to obtain a finished product of the anti-creasing agent in the bath.

In the invention, ester and alcohol components with relatively large molecular weight are preferentially added in the components of the anti-creasing agent in the bath, so that the uniform distribution of the anti-creasing agent can be ensured, and the structural properties of two alcohol amine components are relatively unstable at relatively high temperature, so that the anti-creasing agent can be added together at the later stage and subjected to cooling treatment, and finally, the uniform dispersion of the relatively large molecular weight and the property temperature of the alcohol amine substances with relatively small molecular weight after mixing are ensured.

The further preferred technical scheme is as follows: the in-bath anti-wrinkling agent also comprises the deionized water, the deionized water is added twice in the preparation process, and the deionized water accounting for 40-45% of the total amount is added during the preparation of the anti-wrinkling agent base solution.

The further preferable technical scheme is that the preparation process of the dry and wet rubbing fastness improver sequentially comprises the following steps:

s1, grinding the powder to obtain powder for supporting the lifting agent;

s2, heating and mixing to obtain a finished product of the dry and wet rubbing fastness improver;

and S3, adding a lifting assistant to obtain the compound fastness lifting agent for later use.

The further preferable technical scheme is that the liquid paraffin, the silicon rubber powder, the nano zinc oxide powder and the nano silver powder are added into a nano spherical vibration grinding machine, the grinding is carried out until the weight of the ultrasonic vibration screening machine passing through 5um level reaches 98%, water is added, the mixture is pressurized and stored for 15-25min, and finally the powder for the supporting of the lifting agent is obtained by air drying.

In the invention, the silicon rubber powder, the nano zinc oxide powder and the nano silver powder ensure the fastness of dye adhesion on fabric fibers in a powder supporting filler mode, so that the particle size is not required to be too large, otherwise, the strength of the adhered dye is reduced, and the final hand feeling of the fabric is also reduced, so that the fabric is crushed by a nano spherical vibration grinding machine until the particle size of most of the powder is less than 5 um.

The further preferred technical scheme is as follows: and mixing the fatty acid sucrose polyester and the hydroxyethyl ethylenediamine with the powder for supporting the improver at the temperature of 55-85 ℃ to obtain a finished product of the dry and wet rubbing fastness improver.

In the invention, the fatty acid sucrose polyester and the hydroxyethyl ethylenediamine are used for self-dispersing the three powders, are matched with the lifting auxiliary agent and are used for further dispersing, and more importantly, the fatty acid sucrose polyester is a nonionic surfactant, so that the surface of the fiber can be further emulsified, and the powder fixing and dye adsorption capacity is improved.

The further preferred technical scheme is as follows: the lifting aid is added and mixed under the conditions that the temperature is 25-35 ℃, the stirring speed is 100-350r/min, and the cellulase and the amylase are added together finally.

In the invention, the cellulase and the amylase are used for decomposing impurities on the surface of the fabric fiber, so that the cellulase and the amylase are added under the proper condition of 25-35 ℃, the lifting auxiliary agent is firstly mixed with the dry-wet rubbing fastness lifting agent on the whole, and then the printing and dyeing auxiliary agent is added, so that the uniform dispersibility of the three kinds of powder for improving the fastness can be further ensured.

The further preferable technical scheme is that the anti-wrinkling agent in the bath comprises the following components in parts by weight: 15-22 parts of toluene diisocyanate, 7-19 parts of polyether polyol, 5-15 parts of fatty alcohol-polyoxyethylene ether, 1-3 parts of N-methyldiethanolamine, 0.5-1.5 parts of triethanolamine, 1-2 parts of isobornyl acetate and 40-45 parts of deionized water; the dry-wet rubbing fastness improver comprises the following components in parts by weight: 7-18 parts of liquid paraffin, 15-45 parts of fatty acid sucrose polyester, 1-6 parts of hydroxyethyl ethylenediamine and 11-25 parts of silicone rubber powder, nano zinc oxide powder and nano silver powder in total.

A preparation method of a composite textile printing and dyeing auxiliary agent sequentially comprises the following steps: uniformly mixing the adhesive, the thickening agent, the leveling agent and the color fixing agent, heating to 45-50 ℃, preserving heat, adding the in-bath anti-wrinkling agent, stirring for 15-45min, adding the composite fastness improver, stirring for 5-8min, and cooling to obtain the printing and dyeing auxiliary agent.

In the invention, the anti-creasing agent is added in the bath before the composite fastness improver, so that the mixing uniformity of the silicone rubber powder, the nano zinc oxide powder and the nano silver powder can be further improved.

According to the invention, the anti-creasing agent, the dry-wet rubbing fastness improver and the auxiliary agent are added into the existing printing and dyeing auxiliary agent, so that the effects of effectively improving the anti-creasing capability and the color fastness foundation of the fabric during printing and dyeing are achieved. The invention has the advantages that the in-bath anti-wrinkling agent is environment-friendly, the non-ionic type anti-wrinkling effect is good, the basic effect of improving the color fastness of the fabric by the nano powder adding type dry-wet rubbing fastness improving agent is obvious, the mutual matching effect of the non-ionic type dry-wet rubbing fastness improving agent and the in-bath anti-wrinkling agent is good, and the effect of improving the fastness is further improved by adding the improvement auxiliary agent to further disperse the dry-wet rubbing fastness improving agent.

Detailed Description

The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.