CN104172479B - A kind of antibacterial underwear material - Google Patents

Abstract

An antibacterial underwear material. Including inlayer, skin and intermediate level, its characterized in that: the middle layer is positioned between the inner layer and the outer layer, the inner layer and/or the outer layer adopts natural antibacterial fiber fabric, and the middle layer adopts fabric treated by antibacterial composite coating. The antibacterial composite coating consists of a base material coating and a surface coating. The obtained underwear material is comfortable to wear, antibacterial, nontoxic and long-lasting.

Description

A kind of antibacterial underwear material

technical field

The invention is an antibacterial underwear material and a preparation method thereof.

Background technique

Most of the existing knitted underwear garments are made of single-layer fabrics. Although they are comfortable to wear, they have poor thermal insulation and have an unpleasant smell after wearing for a long time. With the improvement of living standards, people pay more and more attention to the quality of life, hoping to obtain comfortable clothing and a healthy living environment. The requirements for various textiles are getting higher and higher, especially the formation of "green" concepts such as safety, security, comfort, health, hygiene, and cleanliness, which makes the antibacterial, mildew-proof, and deodorant finishing of textiles more popular among people. Pay attention to.

In life, people inevitably come into contact with various bacteria, fungi and other microorganisms. Under suitable external conditions, these microorganisms will multiply rapidly and spread diseases through contact and other ways, affecting people's health and normal life. Work, study and live. Fiber is a porous material, and after superposition and weaving, it will form a multi-layer body with numerous voids, so the fabric is easier to absorb fungi. Antibacterial finishing is to make the fabric have the function of inhibiting the growth of fungi, maintain a hygienic clothing and living environment, and ensure human health.

In the 21st century, with the advent of an aging society, the number of elderly people who are bedridden and recuperating at home is gradually increasing, and the demand for elderly care products to prevent bedsores is also increasing. Due to the transition from a production-based society to a life-based concept, it will be an important issue in the future to develop and research products that are beneficial to human health and the global environment. Therefore, antibacterial finishing is increasingly valued by people.

In the 1960s, people mostly used organic antibacterial agents to produce antibacterial textiles; with the successful development of inorganic antibacterial agents in 1984, antibacterial finishing developed rapidly, making antibacterial agents not only used in fibers and textiles, but also in plastics and building materials etc. products. At present, Japan is the most active in antibacterial and deodorant research, with leading technology, and its products have expanded to sportswear, carpets, medical supplies and other fields. In recent years, the focus of antimicrobial research has shifted from protecting textiles from bacteria to protecting the environment and users from bacteria.

At present, there are three main antibacterial mechanisms: controlled release, regenerative principle, and barrier or blocking effect. CN2011104017686 relates to a high-efficiency, environment-friendly, antibacterial and anti-virus inorganic composite nano-coating and a preparation method thereof, including inorganic composite nano-antibacterial agent concentrated slurry, negative ion powder, emulsion and the like. The disadvantage of this technology is that the raw materials used are many and complicated, and the coatings such as maleic anhydride dust and steam are obviously irritating, which can cause pharyngitis, bronchitis, etc. after inhalation, and direct contact with the skin has obvious irritating effects and causes burns.

Chinese patent CN98223779 discloses a heat-conducting and warm-keeping composite cotton material, which includes two layers of wadding, a needle-punched film and an adhesive layer. insufficient.

Contents of the invention

The object of the present invention is to provide a kind of antibacterial underwear cotton material and preparation method thereof for above-mentioned technical defect. The underwear material thus obtained is comfortable to wear, antibacterial and non-toxic, and has a long service life.

The present invention is achieved by the following technical means:

An antibacterial underwear material, comprising an inner layer, an outer layer and a middle layer, is characterized in that: the middle layer is located between the inner and outer layers, the inner layer and/or the outer layer are made of natural antibacterial fiber fabric, and the middle layer is made of antibacterial composite coating. fabric.

A kind of antibacterial underwear material as described above is characterized in that described natural antibacterial fiber is bamboo fiber, mint fiber. The natural antibacterial fiber fabric is a blend of bamboo fiber or mint fiber and cotton fiber, of which cotton fiber accounts for 60%-90%, and the middle layer is pure cotton fabric.

An antibacterial underwear material as described above is characterized in that the antibacterial composite coating is composed of a base coating and a surface coating. The base coating includes the following raw materials in parts by weight: 60-70 parts of unsaturated polyester resin, 4-5 parts of silver-coated copper powder, 3-8 parts of 1,4-butanediol, 10-13 parts Triethylamine, 1-3 parts of nano zinc oxide, 0.2-0.5 parts of jade powder;

The surface coating comprises the following raw materials in parts by weight: 10-15 parts of polyvinyl alcohol, 10-15 parts of tea tree oil, 8-9 parts of zinc sulfide, 1-5 parts of butadiene-styrene, 0.1-1.3 parts of hexyl Diacid ester polyester, 1-4 parts of magnesium-containing alumina, 0.2-0.6 parts of fumed silica.

An antibacterial composite coating as described above is characterized in that: the substrate coating also includes a composite filler, and the composite filler is calcined kaolin modified with an aluminum-titanium composite coupling agent.

An antibacterial composite coating as described above, characterized in that: the filler is calcined kaolin modified with an aluminum-titanium composite coupling agent, and its preparation method is: drying the kaolin at 80°C for 10 hours before modification , and then mixed with the aluminum-titanium composite coupling agent according to the mass ratio of 97:1, and finally stirred at a high speed in a mixing mixer at 100 ° C. Among them, the aluminum-titanium composite coupling agent is a commercially available product, purchased from Shanxi Chemical Research Institute, brand For OL-AT1618.

A kind of antibacterial underwear material as described above, it is characterized in that described antibacterial composite coating is prepared according to the following steps: prepare substrate coating: first 1/3 unsaturated polyester resin and 1,4-butane Mix alcohol and triethylamine components, stir evenly at a stirring speed of 380-470r/min, then add the remaining unsaturated polyester resin, nano-zinc oxide and stir evenly at a stirring speed of 350-400r/min; add Dry and grind the silver-coated copper powder and the remaining ingredients, then stir at a stirring speed of 1000-2000r/min for 10-20 minutes, and obtain the substrate coating after defoaming; prepare the surface coating: fully grind zinc sulfide with appropriate amount of water, add Dilute inorganic acid to adjust the pH value to 5-6, add polyvinyl alcohol and gas phase silica and stir at 30-40°C for 10-20 minutes, add caustic soda to adjust the pH value to neutral, and continue to stir at a speed of 350-400r/min While stirring, add the remaining raw materials for mixing, and obtain a surface coating after defoaming.

A preparation method of the antibacterial underwear material, characterized in that: the substrate coating is scraped repeatedly on the intermediate layer for 1-3 times, the thickness is 100-150um, and it is dried at 100-150°C for 2-5 minutes; Then brush the surface paint 1-3 times, the thickness of the coating is 150-270um, put it in a cool place for 12-15 hours to dry, and fully cure to form an antibacterial coating. The inner and outer layers are combined with the middle layer to form an antibacterial underwear material. Conventional composite processes such as needle punching and bonding are adopted.

The unsaturated polyester resin used in the present invention is a 191 series unsaturated polyester resin, and the dilute inorganic acid can be selected from industrial-grade hydrochloric acid with a concentration of 10-15%, and dilute nitric acid with a concentration of 35-40%.

Compared with traditional antibacterial coatings, the combined use of substrate coatings and surface coatings has the advantages of enhanced antibacterial effect, improved antibacterial durability, good stability and practicability.

The benefit of batch mixing and choosing a specific mixing speed is that it mixes the composite paint better than other methods.

The adipate ester polyester used in the present invention is dioctyl adipate, n-octyl-n-decyl adipate, 2-n-hexyl adipate etc., adopt above material, when the coating that produces is applied to fabric, It has the advantages of high plasticizing efficiency, small migration, good heat resistance, and excellent durability.

The fumed silica used in the present invention has a relatively high specific surface area, and can play the roles of thickening, anti-sedimentation, matting and reinforcement in the coating. Due to the hydrogen bonding on the surface of fumed silica, a three-dimensional cross-linked network can be formed in the coating system, so that the viscosity of the coating is increased, the use is stable, and it has excellent processing performance in practical applications.

Because the present invention adopts natural antibacterial fiber fabric, it is non-polluting, comfortable to wear, and can inhibit the growth of human bacteria. In addition, the middle layer treated with antibacterial composite materials can have more effective spectrum antibacterial, long-lasting, washable, non-toxic and non-toxic. side effect.

Example

Some sources of raw materials:

Silver-coated copper powder (shape: flake; particle size: 10-15um; silver powder content: 19-21%) is purchased from Shanghai Danze Metal Powder Co., Ltd.

The aluminum-titanium composite coupling agent is a commercially available product purchased from Shanxi Institute of Chemical Industry with the brand name OL-AT1618.

Example 1

The preparation of the substrate coating includes the following raw materials by weight: 60 parts of unsaturated polyester resin, 5 parts of silver-coated copper powder, 3 parts of 1,4-butanediol, 10 parts of triethylamine, 3 parts of nano-zinc oxide, 0.2 parts of jade powder;

Prepare the surface coating and include the following raw materials in parts by weight: 10 parts of polyvinyl alcohol, 15 parts of tea tree oil, 9 parts of zinc sulfide, 1 part of butadiene-styrene, 1.3 parts of adipate ester polyester plasticizer, 4 parts Parts of magnesium-containing alumina, 0.2 parts of fumed silica.

To treat pure cotton fabric with antibacterial composite coating, the following steps are adopted:

After scraping the substrate paint on the fabric 3 times repeatedly, the thickness is 150um, and drying at 150°C for 5 minutes; then brush the surface paint 3 times, the thickness of the coating is 270um, put it in a cool place for 15 hours to dry, fully Cures to form an antimicrobial coating.

The treated pure cotton fabric is used as the middle layer, and the inner and outer layers made of the bamboo fiber fabric are compounded to make antibacterial underwear fabric, wherein the weight of the fabric is 70-300g/ ^m2 .

Example 2

The preparation of the substrate coating includes the following raw materials in parts by weight: 65 parts of unsaturated polyester resin, 4 parts of silver-coated copper powder, 7 parts of 1,4-butanediol, 10 parts of triethylamine, 3 parts of nano-zinc oxide, 0.5 parts of jade powder, 0.3 parts of calcined kaolin modified by aluminum-titanium composite coupling agent;

Prepare the surface coating and include the following raw materials in parts by weight: 13 parts of polyvinyl alcohol, 13 parts of tea tree oil, 8 parts of zinc sulfide, 5 parts of butadiene-styrene, 1.3 parts of adipate ester polyester plasticizer, 4 parts Parts of magnesium-containing alumina, 0.4 parts of fumed silica.

To treat pure cotton fabric with antibacterial composite coating, the following steps are adopted:

After scraping the substrate paint on the fabric 3 times repeatedly, the thickness is 130um, and drying at 150°C for 4 minutes; then brush the surface paint once, the thickness of the coating is 150um, put it in a cool place for 12 hours to dry, fully Cures to form an antimicrobial coating.

The treated pure cotton material is used as the middle layer, and the inner and outer layers of the blended fabric containing bamboo fiber are compounded to form an antibacterial underwear fabric, wherein the weight of the fabric is 70-300g/ ^m2 . The outer fabric is piled.

comparative example

The preparation of antibacterial coatings includes the following raw materials by weight: 60 parts of unsaturated polyester resin, 3 parts of 1,4-butanediol, 10 parts of triethylamine, 3 parts of nano-zinc oxide, 0.2 parts of jade powder, 10 parts of Polyvinyl alcohol, 1 part of butadiene-styrene, 1.3 parts of adipate polyester plasticizer.

To treat pure cotton fabric with antibacterial composite coating, the following steps are adopted:

After scraping the paint on the fabric 4 times repeatedly, the thickness is 160um, dried at 100°C for 6 minutes, the coating thickness is 270um, placed in a cool place to dry for 15 hours, fully cured, and an antibacterial coating is formed.

The treated pure cotton material is used as the middle layer, and the inner and outer layers of the blended fabric containing bamboo fiber are compounded to form an antibacterial underwear fabric, wherein the weight of the fabric is 70-300g/ ^m2 . The outer fabric is piled.

The antibacterial properties of the treated fabrics were tested by the People's Republic of China Textile Industry Standard Fabric Antibacterial Performance Test Method as shown in Table 1.

Table 1 Antibacterial test results

In addition, the results show that the fabric after antibacterial finishing can basically kill Staphylococcus aureus, Staphylococcus epidermidis, Bacillus cereus, Streptococcus, Pneumococcus, Meningococcus, Neisseria gonorrhoeae, Escherichia coli, Shigella, Salmonella typhi, pneumonia Bacillus, Pseudomonas aeruginosa, Bacillus subtilis, Epidermophyton flocculus, Trichophyton gypsum, Candida albicans, Penicillium, Aspergillus niger and other harmful bacteria. Neisseria gonorrhoeae (941748 domestic epidemic strains), Neisseria gonorrhoeae (WHOQ6 international standard drug-resistant strain), Staphylococcus aureus (ATCC6389), Escherichia coli (ATCC8099), Candida albicans (ATCCl0231), Microsporum gypsumoid, flocculent epidermis Ringworm, Trichophyton rubrum, subtilis black variant spores (ATCC9372), etc. do not grow at all on the antibacterial fabrics that have not been washed and washed 50 times, and the antibacterial rate reaches more than 90%. The antibacterial underwear material of the present invention has excellent antibacterial properties. Detergency.

Claims (1)

1. an antibacterial underwear material, comprise internal layer, skin and intermediate layer, intermediate layer is between ectonexine, internal layer and/or outer employing natural antibacterial fabric, intermediate layer adopts the fabric through antibiosis composite dope process, described antibiosis composite dope is made up of substrate coating and surface coating, it is characterized in that described substrate coating is the raw material comprising following weight parts: 60-70 part unsaturated polyester resin, 4-5 part silver-coated copper powder, 3-8 part BDO, 10-13 part triethylamine, 1-3 part nano zine oxide, 0.2-0.5 part jade powder forms;

Described surface coating comprises the raw material of following weight parts: 10-15 part polyvinyl alcohol, 10-15 part tea oil, 8-9 part zinc sulphide, 1-5 part butadiene-styrene, 0.1-1.3 part adipic acid lipid polyester, 1-4 part contain magnesium aluminium oxide, 0.2-0.6 part aerosil.