CN-121976385-A - Production process of antistatic working clothes

Abstract

The application relates to the technical field of textile after-finishing, and discloses a production process of antistatic working clothes, which comprises the steps of carrying out surface activation on base material fabrics; padding the fabric by using a controlled release functional finishing liquid prepared from a core functional monomer, boric acid serving as a dynamic protective agent and the like, and performing multistage temperature control baking on the padded fabric. In the application, the dynamic protective agent can temporarily close the active group of the core functional monomer, inhibit self-condensation in the finishing liquid, thereby prolonging the working liquid pot life, and in the high-temperature baking stage, the protected active group is dissociated and released, and is subjected to covalent bonding with the surface of the activated fiber, and a crosslinked network is formed on the surface of the fiber. According to the application, the chemically bonded antistatic functional layer is constructed on the surface of the fiber, so that the working clothes has excellent washing resistance and stable product quality, and meanwhile, the finishing process has high stability, and is suitable for industrial production.

Inventors

• Du Taimin
• WANG JUNJIE
• PENG YARU

Assignees

• 浙江绅嘉职业服饰有限公司

Dates

Publication Date

20260505

Application Date

20260128

Claims (10)

1. 1. The production process of the antistatic working clothes is characterized by comprising the following steps of: S1, carrying out surface activation treatment on a base material fabric so as to introduce active hydroxyl groups on the fiber surface of the base material fabric; S2, preparing a controlled release functional finishing liquid, wherein the controlled release functional finishing liquid is prepared by reacting a core functional monomer, a dynamic protective agent and an acidic substance serving as a catalyst in deionized water; S3, padding the base material fabric, and uniformly applying the controlled-release functional finishing liquid to the base material fabric; s4, carrying out multistage temperature control baking on the padded base material fabric, wherein the multistage temperature control baking comprises a low-temperature treatment stage for pre-drying and a high-temperature treatment stage for curing and crosslinking; And S5, carrying out post-treatment on the baked base fabric.
2. 2. The process of claim 1, wherein in S2, the siloxane end of the core functional monomer is hydrolyzed to form a silicon hydroxyl group, and the silicon hydroxyl group reacts with the dynamic protective agent to form a dynamic reversible borate-silicon covalent bond.
3. 3. The process for producing antistatic workwear according to claim 2, wherein the core functional monomer is a polyether modified siloxane coupling agent, and the dynamic protective agent is boric acid.
4. 4. The process according to claim 2, wherein in the high temperature treatment stage for curing and crosslinking of S4, the dynamic reversible borate-silicon covalent bond is thermally dissociated at high temperature, and the released silicon hydroxyl groups react with the active hydroxyl groups on the fiber surface through dehydration condensation, so that covalent bonding and crosslinking network is formed on the fiber surface.
5. 5. The process for producing an antistatic working garment according to claim 1, wherein in the step S2, the controlled-release functional finishing liquid is prepared from 1.0-5.0% of the core functional monomer and 0.2-1.0% of the dynamic protective agent, wherein the total mass of the finishing liquid is, and the pH value of the controlled-release functional finishing liquid is 4.5-5.5.
6. 6. The process for producing an antistatic workwear according to claim 1, wherein in S4, the temperature of the low-temperature treatment stage for pre-drying is 80-100 ℃ for 1-2 minutes; the temperature of the high-temperature treatment stage for curing and crosslinking is 120-150 ℃ and the time is 3-5 minutes.
7. 7. The process for producing an antistatic workwear according to claim 1, wherein in S3, the rolling allowance is controlled to be 70-80%.
8. 8. The process for producing an antistatic workwear according to claim 1, wherein the surface activation treatment in S1 is a low temperature plasma treatment or an ultraviolet/ozone treatment.
9. 9. The process for producing an antistatic workwear according to claim 8, wherein when the surface activation treatment is a low-temperature plasma treatment, the treatment power is 100-500W and the treatment time is 30-180 seconds.
10. 10. The process for producing an antistatic workwear according to claim 1, wherein the base fabric is a polyester fabric, a nylon fabric or a cotton/polyester blend fabric.

Description

Production process of antistatic working clothes Technical Field The invention relates to the technical field of textile after-finishing, in particular to a production process of antistatic working clothes. Background As a special labor protection article, the antistatic working clothes has an indispensable function for guaranteeing the product quality and personnel safety in production environments sensitive to static electricity, such as electronic, petrochemical industry, precision instrument manufacturing and the like. The accumulation of static electricity may cause breakdown of components, dust adsorption, and even serious damage such as burning or explosion in a specific environment. Therefore, imparting stable and long-lasting antistatic performance to the fabric of the work clothes is an important technical subject in this field. In order to enable the conventional synthetic fiber materials such as terylene, nylon and the like to have antistatic performance, chemical after-finishing is one of the common technical means. However, the existing antistatic finishing process has the technical defect of insufficient durability. Most finishes, such as quaternary ammonium salts or polyethylene glycol surfactants, bind to the fabric fibers primarily by non-covalent forces such as physical adsorption and ionic attraction. The combination mode is not firm, the finishing agent is easy to fall off from the surface of the fiber after being subjected to multiple industrial washing or daily wearing friction, the antistatic performance of the fabric is obviously reduced or lost, and the requirement of long-term and high-strength use of the working clothes cannot be met. In addition, in the implementation process of the finishing process, part of functional chemicals for forming the functional layer are easy to generate uncontrolled self-condensation reaction in the finishing working solution due to higher self-activity, so that insoluble matters are separated out. The phenomenon shortens the service life of the finishing working solution, causes raw material waste, directly influences the uniformity of finishing effect and the stability among batches, and brings technical barriers to the accurate control of industrial continuous production. Therefore, developing a production technology capable of forming a durable antistatic layer and stable in process is a technical problem to be solved in the field. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a production process of antistatic working clothes, which solves the problems of poor durability of antistatic effect and insufficient stability of finishing process in the existing antistatic finishing technology. In order to achieve the purpose, the invention is realized by the following technical scheme that the production process of the antistatic working clothes comprises the following steps: S1, carrying out surface activation treatment on a base material fabric so as to introduce active hydroxyl groups on the fiber surface of the base material fabric; S2, preparing a controlled release functional finishing liquid, wherein the controlled release functional finishing liquid is prepared by reacting a core functional monomer, a dynamic protective agent and an acidic substance serving as a catalyst in deionized water; S3, padding the base material fabric, and uniformly applying the controlled-release functional finishing liquid to the base material fabric; S4, carrying out multistage temperature control baking on the padded base material fabric, wherein the multistage temperature control baking comprises a low-temperature treatment stage for pre-drying and a high-temperature treatment stage for curing and crosslinking; And S5, carrying out post-treatment on the baked base fabric. In a specific embodiment, in S2, the siloxane end of the core functional monomer is hydrolyzed under the catalysis of the acidic substance to form a silicon hydroxyl group, and the silicon hydroxyl group reacts with the dynamic protective agent to form a dynamic reversible borate-silicon covalent bond. Further, in the high temperature treatment stage for curing and crosslinking of S4, the dynamic reversible borate-silicon covalent bond is thermally dissociated at a high temperature, and the released silicon hydroxyl groups and the active hydroxyl groups on the fiber surface undergo a dehydration condensation reaction, so that a covalent bonding and crosslinking network is formed on the fiber surface. In a specific embodiment, the core functional monomer is a polyether modified siloxane coupling agent and the dynamic protective agent is boric acid. In a specific embodiment, in the step S2, the controlled release functional finishing liquid is prepared from 1.0-5.0% of the core functional monomer and 0.2-1.0% of the dynamic protective agent, and the pH value of the controlled release functional finishing liquid is 4.5-5.5. In a specific embodiment, in S4, t