CN-122013566-A - Short-process dyeing and finishing process for ultraviolet-resistant flame-retardant cotton fabric

Abstract

The invention discloses an ultraviolet-resistant flame-retardant cotton fabric short-process dyeing and finishing process which comprises the specific steps of (1) cotton fabric cold pad-batch pretreatment, namely padding working solution, rolling, wrapping, stacking, washing with hot water at 95 ℃ and drying, (2) dyeing, namely cloth feeding, padding dye solution, drying, padding fixation solution, steaming fixation, soaping and drying, (3) functional coating slurry finishing, wherein the functional coating slurry consists of POSS (polyhedral oligomeric silsesquioxane) acrylate emulsion, a thickening agent and water, the POSS (polyhedral oligomeric silsesquioxane) acrylate emulsion, the thickening agent and water are stirred into functional coating slurry, fabric padding functional coating slurry is subjected to two-padding, the padding liquid rate is 70% -80%, and the ultraviolet-resistant flame-retardant cotton fabric is obtained through pre-drying and baking. The dyeing and finishing process of the cotton fabric saves energy and reduces consumption, and the fabric has good ultraviolet resistance and flame retardance.

Inventors

• JI PING
• GU XIANGJUN
• PAN NENGYU
• HUANG XUEGEN
• ZENG YONG
• WANG JIAYU
• SHEN JIANJUN
• CHEN JIAYONG

Assignees

• 绍兴圣苗针纺有限公司
• 浙江吉麻良丝新材料股份有限公司
• 浙江吉麻良丝纺织科技有限公司

Dates

Publication Date

20260512

Application Date

20251231

Claims (6)

1. 1. An ultraviolet-resistant flame-retardant cotton fabric short-process dyeing and finishing process comprises the following specific steps: (1) Cotton fabric cold pad-batch pretreatment; (2) Dyeing; (3) Finishing functional coating slurry; The functional coating slurry consists of POSS (polyhedral oligomeric silsesquioxane) base acrylic ester emulsion, a thickener and water.
2. 2. The short-process dyeing and finishing process for the ultraviolet-resistant flame-retardant cotton fabric is characterized by comprising the steps of padding working solution, rolling, wrapping, stacking, washing with hot water at 95 ℃ and drying.
3. 3. The short-process dyeing and finishing process for the ultraviolet-resistant flame-retardant cotton fabric according to claim 2, wherein the working solution comprises 12g/L hydrogen peroxide, 40g/L caustic soda, 9g/L oxygen bleaching stabilizer, 16g/L scouring agent, 2g/L chelating agent, 2g/L penetrating agent and the balance of water in terms of weight/volume.
4. 4. The short-process dyeing and finishing process of the ultraviolet-resistant flame-retardant cotton fabric according to claim 1, wherein the POSS-based acrylate emulsion is prepared by emulsion polymerization of OvPOSS, phosphorus nitrogen-based acrylate flame-retardant monomers, 2-hydroxy-4-methacryloxybenzophenone, butyl acrylate, styrene, methyl methacrylate, an emulsifying agent, an initiating agent and water.
5. 5. The short-process dyeing and finishing process for the ultraviolet-resistant flame-retardant cotton fabric, which is characterized in that the POSS-based acrylic ester emulsion is prepared by the following steps: 200 parts of deionized water, 8 parts of OvPOSS parts of phosphazene acrylic ester flame-retardant monomer, 5 parts of 2-hydroxy-4-methacryloxybenzophenone, 60 parts of butyl acrylate, 10 parts of styrene, 18 parts of methyl methacrylate, 3 parts of cetyl trimethyl ammonium bromide and 5 parts of nonylphenol polyoxyethylene ether are added into an emulsifier, and high-speed shearing and emulsification are carried out for 30 minutes to obtain a pre-emulsion; 1.3 parts of azo diisobutylamidine hydrochloride initiator is dissolved in 20 parts of deionized water to prepare an initiator solution; Adding 160 parts of residual deionized water and 1/3 of pre-emulsion into a reactor, stirring, introducing nitrogen to replace air for 15 minutes, slowly heating to 75+/-1 ℃, adding 1/3 of initiator solution into the reactor, keeping the temperature, reacting for about 30 minutes, simultaneously starting to dropwise add the residual pre-emulsion and the residual initiator solution, heating the reaction system to 80 ℃ after the dropwise adding is finished, and continuously keeping the temperature for reacting for 1 hour; Stopping heating, slowly cooling to below 40deg.C, and regulating pH to 5.0-6.0 with dilute acetic acid solution to obtain POSS-based acrylate emulsion.
6. 6. The short-process dyeing and finishing process for the ultraviolet-resistant flame-retardant cotton fabric as claimed in claim 1, wherein the thickener is a nonionic thickener.

Description

Short-process dyeing and finishing process for ultraviolet-resistant flame-retardant cotton fabric Technical Field The invention belongs to the field of dyeing and finishing processing of functional textiles, and particularly relates to an ultraviolet-resistant flame-retardant cotton fabric short-process dyeing and finishing process. Background The cotton fabric is soft and hydrophilic, and is moisture-absorbing and breathable, so that people feel comfortable. The cotton is natural and environment-friendly, has no parasitic bacteria, does not generate static electricity and the like, and also has excellent heat preservation and health aspects. Pure cotton fabric has natural affinity and becomes one of the most basic and reliable textiles in daily life. However, the dyeing and finishing process of cotton fabrics is long, time-consuming and energy-consuming, and an environment-friendly processing method is needed. Disclosure of Invention The invention aims to provide an ultraviolet-resistant flame-retardant cotton fabric short-process dyeing and finishing process. In order to achieve the above purpose, the present invention adopts the following technical scheme. An ultraviolet-resistant flame-retardant cotton fabric short-process dyeing and finishing process comprises the following specific steps: (1) Cotton fabric cold pad-batch pretreatment; (2) Dyeing; (3) Finishing functional coating slurry; The functional coating slurry consists of POSS (polyhedral oligomeric silsesquioxane) base acrylic ester emulsion, a thickener and water. The cotton fabric cold pad-batch pretreatment comprises padding working solution, rolling, wrapping, stacking, hot water washing at 95 ℃ and drying. The working solution comprises 12g/L hydrogen peroxide, 40g/L caustic soda, 9g/L oxygen bleaching stabilizer, 16g/L scouring agent, 2g/L chelating agent, 2g/L penetrating agent and the balance water according to weight/volume. The POSS-based acrylate emulsion is prepared by emulsion polymerization of OvPOSS, phosphorus nitrogen-based acrylate flame-retardant monomers, 2-hydroxy-4-methacryloxybenzophenone, butyl acrylate, styrene, methyl methacrylate, an emulsifier, an initiator and water. The preparation method of the POSS-based acrylate emulsion comprises the following steps: 200 parts of deionized water, 8 parts of OvPOSS parts of phosphazene acrylic ester flame-retardant monomer, 5 parts of 2-hydroxy-4-methacryloxybenzophenone, 60 parts of butyl acrylate, 10 parts of styrene, 18 parts of methyl methacrylate, 3 parts of cetyl trimethyl ammonium bromide and 5 parts of nonylphenol polyoxyethylene ether are added into an emulsifier, and high-speed shearing and emulsification are carried out for 30 minutes to obtain a pre-emulsion; 1.3 parts of azo diisobutylamidine hydrochloride initiator is dissolved in 20 parts of deionized water to prepare an initiator solution; Adding 160 parts of residual deionized water and 1/3 of pre-emulsion into a reactor, stirring, introducing nitrogen to replace air for 15 minutes, slowly heating to 75+/-1 ℃, adding 1/3 of initiator solution into the reactor, keeping the temperature, reacting for about 30 minutes, simultaneously starting to dropwise add the residual pre-emulsion and the residual initiator solution, heating the reaction system to 80 ℃ after the dropwise adding is finished, and continuously keeping the temperature for reacting for 1 hour; Stopping heating, slowly cooling to below 40deg.C, and regulating pH to 5.0-6.0 with dilute acetic acid solution to obtain POSS-based acrylate emulsion. The thickener is a nonionic thickener, and is a commercial product such as DM-5329 (Demei chemical industry). The cotton fabric dyeing and finishing process of the invention finishes desizing, scouring and bleaching by cold pad-batch pretreatment, and has the advantages of extremely low energy consumption, flexible process and small fabric damage. The POSS in the acrylate emulsion is a rigid cage-shaped inorganic nano skeleton formed by silicon-oxygen bonds, and when the POSS is uniformly dispersed in a polymer matrix, the tiny inorganic nano particles can effectively scatter and reflect incident ultraviolet rays. POSS cooperates with diphenyl ketone ultraviolet resistant agent, greatly improves ultraviolet resistant efficiency and durability of the whole system. POSS has a rigid, three-dimensional cage or trapezoid inorganic silica backbone. When the polymer is uniformly dispersed in a polymer matrix, the nano particles can effectively prevent heat, combustible volatile decomposition products and oxygen from being transferred and diffused, the inorganic silica skeleton (-Si-O-) structure of POSS is very stable and not easy to decompose, a continuous, compact and high-strength carbon layer can be quickly formed on the combustion surface of the polymer, and the POSS and the phosphorus nitrogen acrylic ester flame-retardant monomer cooperate to improve the flame retardant property of cotton fabrics. Detailed Desc