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CN-122013520-A - Preparation process of fluffy and soft fabric

CN122013520ACN 122013520 ACN122013520 ACN 122013520ACN-122013520-A

Abstract

The invention relates to the technical field of textile treatment, in particular to a preparation process of fluffy and soft fabric. The invention solves the technical problem that the traditional biological treatment fabric is difficult to consider mechanical property and durability. The preparation method comprises the steps of preprocessing fabric by using rhamnolipid and modified bacterial cellulose, supporting yarns through physical steric hindrance without damage, adding composite biological enzyme to perform gradient temperature control and microetching cooperatively, introducing modified chitosan and glutamine transaminase to perform in-situ enzymatic crosslinking reaction, and finally inactivating and curing at high temperature to obtain a finished product. According to the invention, a three-dimensional bionic network is built in the fabric through a one-bath method, a rigid skeleton support is provided by modified bacterial cellulose, and flexible lubrication is provided by covalent cross-linked modified chitosan, so that excellent durable effects of water resistance and water washing resistance are realized while mechanical damage is completely avoided and fabric strength is protected.

Inventors

  • YU CHUNLAN
  • XU DONG
  • XU YUQIN

Assignees

  • 常州春树服饰科技有限公司

Dates

Publication Date
20260512
Application Date
20260327

Claims (7)

  1. 1. The preparation process of the fluffy and soft fabric is characterized by comprising the following steps of: The fabric is pretreated by rhamnolipid and modified bacterial cellulose to obtain pretreated fabric, composite biological enzyme is added to carry out synergistic biological treatment on the pretreated fabric to obtain biological treated fabric, modified chitosan and glutamine transaminase are added to carry out in-situ enzymatic crosslinking on the biological treated fabric to obtain reprocessed fabric, and finally the fluffy and soft fabric is obtained through inactivation and solidification treatment; The composite biological enzyme is obtained by mixing cellulase and protease, the modified bacterial cellulose is obtained by modifying bacterial cellulose by 3-chloro-2-hydroxypropyl trimethyl ammonium chloride, and the modified chitosan is obtained by modifying chitosan by wheat protein peptide.
  2. 2. The preparation process of the fluffy and soft fabric according to claim 1 is characterized in that the specific process of pretreatment is that the fabric is immersed in a dye vat of deionized water, the rhamnolipid and the modified bacterial cellulose are added, the pH value of bath liquid is regulated, ultrasonic assistance is started, and the pretreated fabric is obtained after treatment.
  3. 3. The preparation process of the fluffy and soft fabric is characterized by comprising the steps of adding the crushed bacterial cellulose into sulfuric acid solution, stirring and reacting at constant temperature, adding ice water for quenching and stopping the reaction, then centrifugally washing, loading into a dialysis bag for dialysis to be neutral, performing ultrasonic dispersion to obtain suspension, taking suspension, dripping NaOH solution into the suspension, activating, dripping 3-chloro-2-hydroxypropyl trimethyl ammonium chloride solution, stirring and reacting, neutralizing to be neutral, dialyzing to remove impurities, and freeze-drying to obtain the modified bacterial cellulose.
  4. 4. The preparation process of the fluffy and soft fabric according to claim 1 is characterized in that the specific process of the synergistic biological treatment is that the composite biological enzyme is added into an original bath, the bath temperature is raised to 45 ℃, and the biological treatment fabric is obtained after constant temperature treatment for 20-40 min.
  5. 5. The preparation process of the fluffy and soft fabric according to claim 1, wherein the specific process of in-situ enzymatic crosslinking is that the bath temperature is reduced to 40 ℃, and then the modified chitosan and the glutamine transaminage are added for continuous reaction for 35-45min, so that the reprocessed fabric is obtained.
  6. 6. The preparation process of the fluffy and soft fabric is characterized in that the preparation process of the modified chitosan is characterized in that wheat protein peptide is dissolved in MES buffer solution, carbodiimide hydrochloride and N-hydroxysuccinimide are added, activated solution is obtained through stirring reaction, chitosan is dissolved in the MES buffer solution, then the activated solution is dropwise added, the reaction is kept at room temperature with continuous stirring, after the reaction is finished, the solution is filled into a dialysis bag, unreacted substances are removed through dialysis, and the modified chitosan is obtained through freeze drying.
  7. 7. The preparation process of the fluffy and soft fabric according to claim 1 is characterized in that the specific process of the deactivation and solidification treatment is that the bath liquid is heated to 85 ℃, the temperature is kept for 10-20min, then the liquid is discharged, the fabric is rinsed by clear water, and finally the fluffy and soft fabric is obtained by drying and shaping.

Description

Preparation process of fluffy and soft fabric Technical Field The invention relates to the technical field of textile treatment, in particular to a preparation process of fluffy and soft fabric. Background With the continuous improvement of the wearing comfort requirements of people, the demands of fluffy and soft fabrics in the fields of underwear, infant clothing, high-end home textiles and the like are increasing. Traditional fabric softening and fluffing treatments mainly rely on mechanical fluffing, liquid ammonia treatment, or the use of large amounts of organosilicon chemical softeners in the finishing stage. Although these conventional means can give a certain smooth and waxy feel to the fabric in a short time, the chemical auxiliary agent often stays only on the surface of the fabric and cannot go deep into the fiber to change the structure, so that the air permeability and the hygroscopicity of the fabric are greatly reduced. In recent years, although the industry introduces traditional biological treatment technologies such as enzyme washing and the like to improve the hand feeling and remove surface hairiness, the traditional biological treatment technology still faces two outstanding technical problems that firstly, the mechanical property is poor, an amorphous area and even a crystalline area of fibers can be seriously damaged by excessive or uncontrollable single enzyme degradation, so that the fabric is strongly suddenly lowered and is extremely easy to damage and tear, secondly, the durability is poor, most of the conventional softener and the treated fibers are physically attached or weak intermolecular acting force, the washing is extremely not resistant, and the fluffy feeling caused by single biological treatment is lost due to the fact that the cellulose is attached again after washing for a plurality of times, so that the fabric is re-hardened and shrunken. How to solve the problem that the traditional biological treatment fabric is difficult to consider the mechanical property and the durability is a pain point to be solved currently. Therefore, a preparation process of fluffy and soft fabric is provided. Disclosure of Invention The invention aims to design a preparation process of fluffy and soft fabric. The preparation method comprises the steps of preprocessing fabric by using rhamnolipid and modified bacterial cellulose, supporting yarns through physical steric hindrance without damage, adding composite biological enzyme to perform gradient temperature control and microetching cooperatively, introducing modified chitosan and glutamine transaminase to perform in-situ enzymatic crosslinking reaction, and finally inactivating and curing at high temperature to obtain a finished product. According to the invention, a three-dimensional bionic network is built in the fabric through a one-bath method, a rigid skeleton support is provided by modified bacterial cellulose, and flexible lubrication is provided by covalent cross-linked modified chitosan, so that excellent durable effects of water resistance and water washing resistance are realized while mechanical damage is completely avoided and fabric strength is protected. In order to achieve the above purpose, the present invention provides the following technical solutions: the invention provides a preparation process of fluffy and soft fabric, which comprises the following steps: The fabric is pretreated by rhamnolipid and modified bacterial cellulose to obtain pretreated fabric, composite biological enzyme is added to carry out synergistic biological treatment on the pretreated fabric to obtain biological treated fabric, modified chitosan and glutamine transaminase are added to carry out in-situ enzymatic crosslinking on the biological treated fabric to obtain reprocessed fabric, and finally the fluffy and soft fabric is obtained through inactivation and solidification treatment; The modified bacterial cellulose is obtained by modifying bacterial cellulose by 3-chloro-2-hydroxypropyl trimethyl ammonium chloride, and the modified chitosan is obtained by modifying chitosan by wheat protein peptide. Preferably, the fabric is cotton fabric. Preferably, the specific process of pretreatment is that 100 parts of fabric is immersed in a dye vat containing 1000 parts of deionized water, 0.1-0.3 part of rhamnolipid and 0.5-2.0 parts of modified bacterial cellulose are added, the pH value of bath liquid is regulated to 6.5, ultrasonic assistance (frequency 40kHz, power 200W) is started, and the temperature is controlled to be 30 ℃ for 20 minutes, so that the pretreated fabric is obtained. The preparation process of the modified bacterial cellulose comprises the steps of slowly adding 10 parts of crushed bacterial cellulose into 200 parts of 60% sulfuric acid solution, starting mechanical stirring (300 rpm), accurately controlling the temperature at 45 ℃, reacting at constant temperature for 2 hours, adding ice water with 10 times of volume for q