阅读说明：本技术 抗菌水刺无纺布及其制备方法 (Antibacterial spunlace non-woven fabric and preparation method thereof ) 是由 奚立峰 杨盛军 于 2019-11-06 设计创作，主要内容包括：本发明公开了一种抗菌水刺无纺布及其制备方法,采用纯塑胶材料(PET、PP等)或含有金属元素(锌、铜、铝、银等)的纤维丝材料制备水刺无纺布,再通过各组分配比制备的抗菌剂溶液制得抗菌水刺无纺布。本发明的抗菌水刺无纺布,配比合理,利于提升抗菌性、防霉性和吸湿性,具有透气性好等性能；制备过程中采用直接通过溶液的方式,保证抗菌和吸湿的均匀性,使得产品抗菌吸湿性能高效持久。(The invention discloses an antibacterial spunlace non-woven fabric and a preparation method thereof. The antibacterial spunlace non-woven fabric is reasonable in proportion, favorable for improving antibacterial property, mildew resistance and hygroscopicity, and good in air permeability and the like; the mode of directly passing through the solution is adopted in the preparation process, so that the uniformity of antibiosis and moisture absorption is ensured, and the antibiosis and moisture absorption performance of the product is high-efficiency and durable.)

1. An antibacterial agent solution of an antibacterial spunlace non-woven fabric is characterized by comprising, by weight, 10-15 parts of a water absorbent, 5-10 parts of a finishing agent, 0.5-1 part of an antibacterial mildew preventive and the balance of water; the water absorbent is a polyamide derivative.

2. An antimicrobial solution for use in the treatment of an antimicrobial hydroentangled nonwoven fabric according to claim 1, wherein the polyamide derivative comprises a polyamide resin.

3. An antimicrobial solution according to claim 1, wherein the finishing agent is polyvinyl acetate.

4. An antimicrobial solution according to claim 1, wherein the antimicrobial and antifungal agent is silver ion, zinc ion or titanium dioxide.

5. An antimicrobial solution for antimicrobial hydroentangled nonwoven fabrics according to claim 1, characterized in that it further comprises a color paste.

6. The antibacterial agent solution for antibacterial spunlace nonwoven fabric according to claim 1, which comprises 12 parts by weight of polyamide resin, 7 parts by weight of polyvinyl acetate, 0.8 part by weight of zinc ions, 0.2 part by weight of color paste and the balance of water.

7. The preparation method of the antibacterial spunlace non-woven fabric is characterized by comprising the following specific steps:

step 1) preparing pure plastic fibers or pure plastic fibers and metal fiber-containing filaments into spunlace non-woven fabrics by a spunlace method;

step 2) dissolving a water absorbent, a finishing agent and an antibacterial mildew preventive in water to form an antibacterial agent solution; the water absorbent is a polyamide derivative;

and 3) passing the spunlace non-woven fabric through an antibacterial agent solution, and drying to obtain the antibacterial spunlace non-woven fabric.

8. A method of producing an antibacterial spunlace nonwoven fabric according to claim 7, wherein the antibacterial agent solution is produced by the following process: adding 10-15 parts of water absorbent, 5-10 parts of finishing agent and 0.5-1 part of antibacterial mildew preventive into 75-85 parts of water by weight, stirring the mixture for 10 minutes until solute is dissolved, and placing the mixed solution at room temperature to obtain the water-soluble antibacterial mildew preventive.

9. The method for preparing an antibacterial spunlace nonwoven fabric according to claim 7, wherein the time for the spunlace nonwoven fabric to pass through the antibacterial agent solution in the step 3) is not less than 5 seconds; the drying temperature is 80-150 ℃.

10. An antibacterial spunlace nonwoven fabric prepared by the method of claims 7-9.

Technical Field

The invention relates to the technical field of fiber products and composite materials, in particular to an antibacterial spunlace non-woven fabric and a preparation method thereof.

Background

Nonwoven fabrics, also known as non-woven fabrics, are composed of oriented or random fibers, and are called fabrics because of their appearance and certain properties, and have been widely used in human life. However, the porous shape and chemical structure of the polymer compound of the non-woven fabric are beneficial to the attachment of microorganisms, so that the research and development of moisture absorption and antibacterial functions of the non-woven fabric are of great significance.

CN201810850750.6 discloses a preparation method of a moisture-absorbing, air-permeable and antibacterial spunlace nonwoven fabric for polyurethane synthetic leather, which is prepared by uniformly scattering modified coconut husk product, carboxylated graphene sheet material, polyurethane adhesive and the like on the surface of a moisture-absorbing and air-permeable spunlace woven material, folding and flattening, and has limitations in the use process.

Disclosure of Invention

The invention provides an antibacterial spunlace non-woven fabric and a preparation method thereof, and provides the antibacterial spunlace non-woven fabric which has lasting antibacterial performance, strong hygroscopicity, no toxicity and no pollution.

In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:

on one hand, the invention provides an antibacterial agent solution of an antibacterial spunlace non-woven fabric, which comprises, by weight, 10-15 parts of a water absorbent, 5-10 parts of a finishing agent, 0.5-1 part of an antibacterial mildew preventive and the balance of water.

Further, the water absorbing agent is a polyamide derivative. The polyamide derivative includes polyamide resins such as nylon 6, nylon 66 and the like. The water absorbing agent is preferably 12 parts. The polyamide resin has the advantages of toughness, flexibility, strong binding force, wear resistance, oil resistance, water resistance, enzyme and bacteria resistance and high water absorption. Wherein, the nylon 6 has good elasticity, high impact strength and larger water absorption; the nylon 66 has better performance than nylon 6, high strength and good wear resistance.

Further, the finishing agent is polyvinyl acetate, preferably 7 parts. The polyvinyl acetate: the product has toughness and plasticity; strong adhesive force, dilute acid and dilute alkali resistance; a strong coating can be formed.

Further, the antibacterial and mildewproof agent is silver ions, zinc ions, titanium dioxide or the like, and preferably 0.8 part; the zinc ion source is zinc chloride or zinc oxide.

Further, the antibacterial agent solution also comprises color paste. The color paste is green color paste. The color paste is 0-0.5 part, preferably 0.2 part.

Further, the antibacterial agent solution comprises 12 parts of polyamide resin, 7 parts of polyvinyl acetate, 0.8 part of zinc ions, 0.2 part of color paste and the balance of water.

On one hand, the invention provides a preparation method of an antibacterial spunlace nonwoven fabric, which comprises the following specific steps:

step 1) dissolving a water absorbent, a finishing agent and an antibacterial mildew preventive in water to form an antibacterial agent solution;

and 2) passing the spunlace non-woven fabric through an antibacterial agent solution, and drying to obtain the antibacterial spunlace non-woven fabric.

Further, the preparation method of the spunlace nonwoven fabric comprises the following steps:

mode 1) preparing filament fibers of pure plastic materials (PET, PP and the like) by a spun-bonding method, laying the filament fibers on a net forming curtain, and splitting the filament fibers by high-pressure spunlace to obtain superfine fiber spunlace non-woven fabrics;

mode 2) covering a metal fiber net between the two layers of superfine fiber non-woven fabrics obtained in the mode 1), and preparing the superfine fiber composite spunlace non-woven fabric by using a spunlace method. The metal fiber net can be a silver fiber net, a zinc fiber net, a copper fiber net, an aluminum fiber net, a carbon fiber composite zinc net and the like;

mode 3) covering the superfine fiber non-woven fabric between the two layers of metal fiber nets obtained in the mode 1), and preparing the superfine fiber composite spunlace non-woven fabric by using a spunlace method. The metal fiber net can be a silver fiber net, a zinc fiber net, a carbon fiber composite zinc net and the like.

The metal element in the fiber material containing the metal element comprises zinc, copper, aluminum, silver and the like.

Selecting fibers, making the fibers into a fiber web through the processes of opening, mixing and cross lapping, and puncturing a multilayer pure or composite fiber web by high-pressure water flow under the support of a trawl curtain through a spunlace method to form a plurality of puncturing holes on the surface of the fibers and reinforce the fiber web to prepare a spunlace non-woven fabric; in the water-jet method: the prewetting water pressure, the spunlace pressure, the spraying time, the production line speed and the like can be regulated and controlled according to the requirements of different non-woven fabric products; the non-woven fabric is soaked in the antibacterial agent solution, so that gaps and areas of the non-woven fabric are soaked uniformly, the dispersibility of each component of the antibacterial agent solution is better, and the antibacterial effect is uniform; the spunlace nonwoven fabric penetrates through the antibacterial agent solution, so that bubbles in the antibacterial agent solution can be avoided, the components can be uniformly distributed, the moisture absorption and the antibacterial and mildew-proof performance of the nonwoven fabric are uniform, and the precipitation of substances in the holes of the dried nonwoven fabric can be effectively avoided.

The invention uses the plastic fiber such as PET and the like, and does not contain organic substances such as bacteria and mildew; the antibacterial mildew inhibitor containing metal elements such as zinc ions has long-term effect and does not contain harmful substances; the antibacterial spunlace non-woven fabric prepared by the application has good hydrophilicity, the water absorption height is at least 130mm in about 5min, the antibacterial spunlace non-woven fabric is suitable for the technical requirements of products such as filter elements and the like, and the water absorption rate is up to more than 65%.

Further, the antibacterial agent solution is prepared by the following steps: adding 10-15 parts of water absorbent, 5-10 parts of finishing agent and 0.5-1 part of antibacterial mildew preventive into 75-85 parts of water by weight, stirring the mixture for 10 minutes until the solute is dissolved, adding a small amount of organic solvent or heating, such as acetone or ethanol, to accelerate the dissolution if part of the solute is not dissolved, and placing the mixed solution at room temperature to obtain the antibacterial mildew preventive. Further, color paste is added according to the requirement on the color of the antibacterial spunlace non-woven fabric.

Further, the antibacterial agent solution is prepared by the following steps: adding 10-15 parts by weight of polyamide resin, 5-10 parts by weight of polyvinyl acetate and 0.5-1 part by weight of zinc ions into 75-85 parts by weight of water, stirring the mixture for 10 minutes until the solute is dissolved, adding a small amount of organic solvent or heating, such as acetone or ethanol, to accelerate the dissolution if part of the solute is not dissolved, and placing the mixed solution at room temperature to obtain the composite. Further, color paste is added according to the requirement on the color of the antibacterial spunlace non-woven fabric.

Further, the time for the water-punched non-woven fabric in the step 2) to pass through the antibacterial agent solution is more than or equal to 5 seconds; the drying temperature is 80-150 ℃.

In one aspect, the invention provides an antibacterial spunlace nonwoven fabric prepared by the method of the invention.

The antibacterial agent coating covers the surface of the prepared antibacterial spunlace non-woven fabric, wherein the antibacterial mildew preventive can effectively inhibit the propagation of bacteria, improve the antibacterial performance of the non-woven fabric, and has lasting and safe antibacterial effect; the water absorbent has good water absorption capacity, and can increase the softness, wear resistance, oil resistance and enzyme resistance of the non-woven fabric when coated on the surface of the non-woven fabric; the water absorption of the polyamide derivative is useless in the prior art, and the water absorption of the antibacterial spunlace non-woven fabric is utilized to enhance the water absorption performance of the antibacterial spunlace non-woven fabric, so that the existing prejudice is overcome, and the polyamide derivative has great significance; the finishing agent has strong adhesive force, can ensure that all raw materials of the antibacterial coating are better attached to the surface of the spunlace non-woven fabric, and improves the attachment effect of the antibacterial coating of the non-woven fabric.

Compared with products containing plant fiber components in the market to improve hydrophilicity, the plant fiber is a factor for fungus mildews, and the pure plastic materials (PET, PP and the like) or the pure plastic materials (PET, PP and the like) are combined with fibers containing metal elements to prepare the non-woven fabric, so that the fungus mildews can be effectively inhibited, and the problems are completely eradicated; many like products in the market use different pharmaceutical preparations to kill or inhibit the growth of bacteria, but this application can effectively inhibit bacteria and sterilize without side effect by covering the antibacterial agent coating on the non-woven surface.

Has the advantages that:

the antibacterial agent solution prepared by the components in proportion is reasonable in proportion, facilitates improvement of antibacterial property and hygroscopicity, and has good air permeability and other properties; the mode of directly passing through the solution is adopted in the preparation process, so that the uniformity of antibiosis and moisture absorption is ensured, and the antibiosis and moisture absorption performance of the product is high-efficiency and durable.

The antibacterial spunlace non-woven fabric prepared by pure plastic fibers or plastic fibers compounded with metal element-containing fibers has high hygroscopicity and strong antibacterial effect, and can be used as filter materials of evaporative air coolers, humidifiers, air purifiers and the like.

Detailed Description

The technical solutions will be described clearly and completely in the following with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.

Unless otherwise specified, the reagents and materials used in the present invention are commercially available products or products obtained by a known method.