CN-116494608-B - Degradable antistatic non-woven fabric and preparation method thereof

Abstract

The invention relates to the technical field of non-woven fabrics and provides a degradable antistatic non-woven fabric and a preparation method thereof, wherein the degradable antistatic non-woven fabric comprises a first non-woven fabric base layer, an adhesive layer, an antibacterial layer and a second non-woven fabric base layer which are sequentially arranged from top to bottom, wherein the first non-woven fabric base layer and the second non-woven fabric base layer are respectively provided with an anti-oxygen and moisture-absorbing coating, the anti-oxygen and moisture-absorbing coating consists of, by weight, 35-50 parts of polybutylene adipate, 30-40 parts of diethyl ether, 5-8 parts of phosphatidylethanolamine, 2-4 parts of polyvinyl acetate, 6-10 parts of polypropylene fumarate, 1-3 parts of carboxymethyl cellulose, and phosphatidylethanolamine has better hygroscopicity and anti-oxygen property, so that the anti-oxygen and moisture-absorbing properties of the first non-woven fabric base layer and the second non-woven fabric base layer are improved, the anti-static ability of the non-woven fabric is improved, the stability of the antibacterial layer on the non-woven fabric is improved, and the antibacterial effect is better.

Inventors

• HU XIAO
• LI NAN

Assignees

• 深圳市探途科技有限公司

Dates

Publication Date

20260505

Application Date

20230329

Claims (6)

1. 1. The degradable antistatic non-woven fabric comprises a first non-woven fabric base layer, an adhesive layer, an antibacterial layer and a second non-woven fabric base layer which are sequentially arranged from top to bottom, and is characterized in that the first non-woven fabric base layer and the second non-woven fabric base layer are both provided with an anti-oxygen and moisture-absorbing coating, wherein the anti-oxygen and moisture-absorbing coating comprises, by weight, 35-50 parts of polybutylene adipate, 30-40 parts of diethyl ether, 5-8 parts of phosphatidylethanolamine, 2-4 parts of polyvinyl acetate, 6-10 parts of polypropylene fumarate and 1-3 parts of carboxymethyl cellulose, and the phosphatidylethanolamine comprises glycerol, fatty acid, phosphoric acid and ethanolamine.
2. 2. The degradable antistatic nonwoven fabric according to claim 1, wherein the first nonwoven fabric base layer is formed by blending soy protein fibers and alginate fibers.
3. 3. The degradable antistatic nonwoven fabric according to claim 1, wherein the second nonwoven fabric base layer is formed by blending degradable polyester fibers and cotton fibers.
4. 4. The degradable antistatic nonwoven fabric according to claim 1, wherein the antibacterial layer is a polylactic acid antibacterial spray coating.
5. 5. The degradable antistatic nonwoven fabric according to claim 1, wherein the adhesive layer is a polyvinyl acetate adhesive layer.
6. 6. A method for preparing degradable antistatic non-woven fabrics, which is characterized by comprising the following steps: S1, sequentially adding polybutylene adipate, polyvinyl acetate, polypropylene fumarate and carboxymethyl cellulose into diethyl ether, mixing and stirring uniformly to obtain a mixed solution, and adding phosphatidylethanolamine into the mixed solution, mixing and stirring uniformly to obtain the antioxidant hygroscopic paint, wherein the phosphatidylethanolamine consists of glycerol, fatty acid, phosphoric acid and ethanolamine; S2, blending soybean protein fibers and alginate fibers to prepare a first prefabricated non-woven fabric base layer, repeatedly flushing the first prefabricated non-woven fabric base layer with deionized water for 5-10 times, drying, soaking the dried first prefabricated non-woven fabric base layer in an anti-oxygen moisture-absorbing coating for 30-45 min, taking out, and drying to obtain a first non-woven fabric base layer with an anti-oxygen moisture-absorbing coating; S3, blending the degradable polyester fibers and the cotton fibers into a second prefabricated non-woven fabric base layer, repeatedly flushing the second prefabricated non-woven fabric base layer with deionized water for 5-10 times, drying, soaking the dried second prefabricated non-woven fabric base layer in an anti-oxygen moisture-absorbing coating for 30-45 min, taking out, and drying to obtain a second non-woven fabric base layer with an anti-oxygen moisture-absorbing coating; s4, spraying the polylactic acid antibacterial coating on the upper surface of the second non-woven fabric base layer, and baking at a high temperature to form an antibacterial layer; and S5, coating a polyvinyl acetate adhesive on the upper surface of the antibacterial layer, baking at a high temperature to form an adhesive layer, and compositing the lower surface of the first non-woven fabric base layer on the upper surface of the adhesive layer to obtain the degradable antistatic non-woven fabric.

Description

Degradable antistatic non-woven fabric and preparation method thereof Technical Field The invention relates to the technical field of non-woven fabrics, in particular to a degradable antistatic non-woven fabric and a preparation method thereof. Background Nonwoven fabrics, also known as nonwovens, are composed of oriented or random fibers. It is called a cloth because of its appearance and certain properties. The non-woven fabric has the characteristics of moisture resistance, ventilation, flexibility, light weight, no combustion supporting, easy decomposition, no toxicity and irritation, rich color, low price, recycling, and the like. In the use of nonwoven fabrics, the nonwoven fabrics themselves are not antistatic, and in some use environments, the nonwoven fabrics with static electricity affect the use safety. In order to enable the non-woven fabric to have antistatic capability, in the prior art, antistatic coating treatment is usually carried out on the non-woven fabric, such as dipping, spraying, ultrasonic and other physical methods are adopted to coat the antistatic agent on the non-woven fabric, however, the binding force between the common antistatic agent and non-woven fabric fibers is smaller, the antistatic agent is easy to precipitate on the surface of the non-woven fabric or volatilize, so that the non-woven fabric lacks lasting antistatic capability, if the antistatic agent is precipitated on the surface of the non-woven fabric, the surface of a wiped object is easy to damage during wiping, or the antistatic agent is left on the surface of the wiped object, so that the surface of the wiped object is polluted, and if the residual amount of the antistatic agent is too much, the performance of the wiped object is influenced, so that the non-woven fabric has certain limitation in application due to the use of the antistatic agent, meanwhile, the antibacterial performance of the conventional non-woven fabric is not very good, the invasion of microorganisms is not effectively prevented, the easy to mould and the odor is short in service life. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a degradable antistatic non-woven fabric and a preparation method thereof, and aims to solve the problems that the non-woven fabric in the prior art lacks lasting antistatic capability, is poor in antistatic effect, cannot effectively resist bacteria and is short in service life. According to the technical scheme, the degradable antistatic non-woven fabric comprises a first non-woven fabric base layer, an adhesive layer, an antibacterial layer and a second non-woven fabric base layer which are sequentially arranged from top to bottom, wherein the first non-woven fabric base layer and the second non-woven fabric base layer are respectively provided with an anti-oxygen and moisture-absorbing coating, and the anti-oxygen and moisture-absorbing coating comprises, by weight, 35-50 parts of polybutylene adipate, 30-40 parts of diethyl ether, 5-8 parts of phosphatidylethanolamine, 2-4 parts of polyvinyl acetate, 6-10 parts of polypropylene fumarate and 1-3 parts of carboxymethyl cellulose. Preferably, the phosphatidylethanolamine consists of glycerol, fatty acids, phosphoric acid and ethanolamine. Preferably, the first non-woven fabric base layer is formed by blending soybean protein fibers and alginate fibers. Preferably, the second non-woven fabric base layer is formed by blending degradable polyester fibers and cotton fibers. Preferably, the antibacterial layer is a polylactic acid antibacterial spray coating. Preferably, the adhesive layer is a polyvinyl acetate adhesive layer. On the other hand, the invention also provides a preparation method of the degradable antistatic non-woven fabric, which comprises the following steps: S1, sequentially adding polybutylene adipate, polyvinyl acetate, polypropylene fumarate and carboxymethyl cellulose into diethyl ether, mixing and stirring uniformly to obtain a mixed solution, and then adding phosphatidylethanolamine into the mixed solution, mixing and stirring uniformly to obtain the antioxidant hygroscopic paint. S2, blending soybean protein fibers and alginate fibers to prepare a first prefabricated non-woven fabric base layer, repeatedly flushing the first prefabricated non-woven fabric base layer with deionized water for 5-10 times, drying, soaking the dried first prefabricated non-woven fabric base layer in an anti-oxygen moisture-absorbing coating for 30-45 min, taking out, and drying to obtain a first non-woven fabric base layer with an anti-oxygen moisture-absorbing coating; S3, blending the degradable polyester fibers and the cotton fibers into a second prefabricated non-woven fabric base layer, repeatedly flushing the second prefabricated non-woven fabric base layer with deionized water for 5-10 times, drying, soaking the dried second prefabricated non-woven fabric base layer in an anti-oxygen moisture-absorbing coating for