CN110042531B

CN110042531B - Textile product

Info

Publication number: CN110042531B
Application number: CN201910424027.6A
Authority: CN
Inventors: 赵张刚
Original assignee: Hangzhou Zhejiang Textile New Materials Co ltd
Current assignee: Hangzhou Zhejiang Textile New Materials Co ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2022-01-28
Anticipated expiration: 2039-05-21
Also published as: CN110042531A

Abstract

The invention discloses a textile, which comprises an inner layer and an outer layer; the inner layer comprises blended fibers formed by a mixture of a copolymer PHBV of 3-hydroxybutyrate and 3-hydroxyvalerate and polylactic acid (PLA); the outer layer comprises regenerated cellulose fibers; the weight ratio of the inner layer to the outer layer is 1: 0.5-5, and the weight ratio of PLA to PHBV is 1.5-5: 1. The textile has good antibacterial function.

Description

Textile product

Technical Field

The invention relates to a textile, in particular to a textile with an antibacterial function.

Background

The textile is a product formed by weaving textile fibers, and includes but is not limited to knitted fabrics, woven fabrics, non-woven fabrics, clothes, clothing ornaments, household textiles, decorative cloth products, gloves, hats, socks, cases, blankets, cloth toys, decorative lamps and the like. After the textile is affected with damp, bacteria are easy to breed, so that the textile with the antibacterial function is necessary to be researched.

CN102839646A discloses a biodegradable material, which is made by mixing polylactic acid fiber and at least one of regenerated protein fiber, regenerated cellulose fiber or natural fiber. The sand barrier made of the biodegradable material has the characteristics of high moisture regain and the like, and does not relate to an antibacterial function.

CN103290597A discloses a novel environment-friendly health-care textile fabric, which comprises the following components: 25-30% of regenerated cellulose fiber, 15-20% of seaweed carbon fiber, 20-25% of polylactic acid fiber, 10-15% of chitin fiber and 25-30% of polyester fiber. The fabric is formed by interweaving warp yarns and weft yarns, wherein the warp yarns are formed by blending regenerated cellulose fibers and the seaweed carbon fibers, and the weft yarns are formed by blending polylactic acid fibers, chitin fibers and the polyester fibers. The fabric has ultraviolet ray and far infrared ray resisting functions, and has no antibacterial function.

CN202849675U discloses a medical fabric for interweaving different biological materials, which comprises warp yarns and weft yarns, wherein the warp yarns are yarns spun by chitosan fibers, the weft yarns are yarns spun by natural cellulose fibers, and the warp yarns and the weft yarns are interwoven into the fabric in a weaving or knitting mode. The weft yarns may also be yarns spun from regenerated cellulose. The warp yarn can also be a yarn spun by polylactic acid fiber, and the weft yarn can also be a yarn spun by chitosan fiber and natural cellulose fiber together. The fabric can be applied to the treatment area and has no antibacterial function.

Disclosure of Invention

In view of the above, it is an object of the present invention to provide a textile product which does not contain additional antimicrobial agents, but still has an antimicrobial function. It is a further object of the present invention to provide a textile product which has moisture absorption and quick drying functions.

The invention provides a textile, comprising an inner layer and an outer layer; the inner layer comprises blended fibers formed by a mixture of a copolymer PHBV of 3-hydroxybutyrate and 3-hydroxyvalerate and polylactic acid (PLA); the outer layer comprises regenerated cellulose fibers; wherein the weight ratio of the inner layer to the outer layer is 1: 0.5-5, and the weight ratio of PLA to PHBV is 1.5-5: 1.

According to the textile, the weight ratio of the inner layer to the outer layer is preferably 1: 1-2, and the weight ratio of PLA to PHBV is preferably 2-3: 1.

According to the textile disclosed by the invention, preferably, the inner layer further comprises cotton fibers, and the weight ratio of the cotton fibers to the PHBV is 3-9: 1.

According to the textile disclosed by the invention, preferably, the inner layer further comprises cotton fibers, and the weight ratio of the cotton fibers to the PHBV is 5-7: 1.

According to the textile of the invention, preferably, the textile comprises 25-50 wt% of the inner layer and 50-75 wt% of the outer layer.

According to the textile, preferably, the inner layer comprises 10-20 wt% of PHBV, 20-35 wt% of PLA and 50-70 wt% of cotton fibers.

According to the textile of the invention, preferably, the blended fiber is selected from short fibers with the yarn number of 25-200S, and the cotton fiber is long staple cotton.

According to the textile of the invention, preferably, the blended fibers are selected from filaments with the denier of 25-300.

According to the textile of the present invention, preferably, the regenerated cellulose fiber is lyocell filament having a fineness of 25 to 300 deniers or lyocell staple fiber having a yarn count of 25 to 200S.

The textile according to the invention is preferably a sock, an underwear, a coat, a bedding, an eye mask or a glove.

The invention uses the blended fiber formed by combining PHBV and PLA as the inner layer, and simultaneously uses the regenerated cellulose fiber as the outer layer, thus utilizing the moisture absorption and quick drying functions of the material, destroying the cell wall of bacteria, providing a dry environment and avoiding the propagation of fungi. According to the preferred technical scheme of the invention, the cotton fiber is combined with PHBV and PLA for use, so that the antibacterial function and the cost saving can be both considered.

Detailed Description

The present invention will be further described with reference to the following specific examples, but the scope of the present invention is not limited thereto.

Denier, also known as Denier, refers to the mass in grams of 9000m long fibers at a official moisture regain. The yarn count refers to the length of a given weight of fiber or yarn. The yarn count is marked "S". Lyocell (Lyocell) fibre denotes a regenerated cellulose fibre. In the present invention, lyocell fiber means regenerated cellulose fiber formed by using 4-methylmorpholine-N-oxide (NMMO) or an ionic liquid as a solvent.

The textile of the invention has an antimicrobial function and does not contain additional antimicrobial agents. The textile of the invention is made by weaving textile fibers, and includes but is not limited to knitted fabrics, woven fabrics, clothes, clothing ornaments, household textiles, decorative cloth products, gloves, hats, socks, cases, blankets and the like. Preferably, the textile is a sock, undergarment, coat, bedding, eye mask or glove.

The textile of the present invention comprises an inner layer and an outer layer; but does not contain additional antimicrobial agents. The antibacterial agent means an agent for controlling various pathogenic microorganisms, including natural antibacterial agents (e.g., chitin) or synthetic antibacterial agents (e.g., nano-silver antibacterial agents), and the like.

In the invention, the weight ratio of the inner layer to the outer layer can be 1: 0.5-5; preferably, the weight ratio of the inner layer to the outer layer is 1: 1-2; more preferably, the weight ratio of the inner layer to the outer layer is 1: 1.2-1.5. Thus, both the antibacterial function and the wearing comfort can be taken into consideration. In certain embodiments, the textile includes 25 to 50 wt% of the inner layer and 50 to 75 wt% of the outer layer. Preferably, the textile comprises 30-45 wt% of the inner layer and 55-70 wt% of the outer layer. More preferably, the textile comprises 35-40 wt% of the inner layer and 60-65 wt% of the outer layer.

The inner layer of the invention comprises blended fiber formed by a mixture of 3-hydroxybutyrate and 3-hydroxyvalerate copolymer (PHBV) fiber and polylactic acid (PLA); optionally, cotton fibers are also included. In addition, the blended fiber can also be obtained by blending a copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate (PHBV) fiber and a polylactic acid (PLA) fiber, and also belongs to the scope of the invention.

In the invention, the weight ratio of PLA to PHBV can be 1.5-5: 1; preferably, the weight ratio of PLA to PHBV is 2-3: 1; more preferably, the weight ratio of PLA to PHBV is 2.1-2.5: 1. Thus, the antibacterial function can be fully exerted.

In the invention, the weight ratio of the cotton fibers to the PHBV can be 3-9: 1; preferably, the weight ratio of the cotton fibers to the PHBV can be 5-7: 1; more preferably, the weight ratio of the cotton fibers to the PHBV can be 5-6: 1. Thus, the antibacterial function and the cost saving can be considered.

In certain embodiments, the inner layer comprises 10 to 20 wt% PHBV, 20 to 35 wt% PLA and 50 to 70 wt% cotton fibers. According to one embodiment of the invention, the inner layer of the invention is formed of blended fibers (PLA/PHBV) and cotton fibers. According to a specific embodiment of the present invention, the inner layer is formed of 10 to 20 wt% of PHBV, 20 to 35 wt% of PLA and 50 to 70 wt% of cotton fiber. The inner layer comprises 10-20 wt% of PHBV, preferably 11-18 wt% of PHBV, and more preferably 12-15 wt% of PHBV. The inner layer comprises 20-35 wt% of PLA, preferably 25-33 wt% of PLA, and more preferably 28-30 wt% of PLA. The inner layer comprises 50-70 wt% of cotton fibers, preferably 55-65 wt% of cotton fibers, and more preferably 60-63 wt% of cotton fibers.

In other embodiments, the inner layer comprises 20 to 50 wt% PHBV and 50 to 80 wt% PLA. According to one embodiment of the invention, the inner layer of the invention is formed of blended fibers formed of a mixture of 20 to 50 wt% of PHBV and 50 to 80 wt% of PLA. According to a specific embodiment of the present invention, the inner layer is formed of blended fibers formed of a mixture of 20 to 50 wt% of PHBV and 50 to 80 wt% of PLA. The inner layer comprises 20-50 wt% of PHBV, preferably 25-45 wt% of PHBV, and more preferably 30-35 wt% of PHBV. The inner layer comprises 50-80 wt% of PLA, preferably 55-75 wt% of PLA, and more preferably 60-70 wt% of PLA.

In the present invention, the outer layer comprises regenerated cellulose fibers. In certain embodiments, the outer layer is formed from regenerated cellulose fibers. The regenerated cellulose fibers are preferably lyocell fibers. Therefore, the moisture absorption and quick drying effects can be improved, and the antibacterial function is further improved. The regenerated cellulose fiber can be selected from Lyocell filament with 25-300 denier or Lyocell short fiber with 25-200S yarn count. The fineness of the lyocell filament is preferably 30 to 200 deniers, and more preferably 50 to 180 deniers. Examples of lyocell filaments include, but are not limited to, filaments having a denier of 40, 50, 80, 100, 120, 150, or 180. The lyocell staple fiber preferably has a yarn count of 30 to 200S, more preferably 50 to 120S. Examples of lyocell staple fibers include, but are not limited to, staple fibers having a yarn count of 30S, 40S, 50S, 60S, 80S, 120S.

The blend fiber of the present invention may be selected from short fibers having a yarn number of 25 to 200S, preferably 30 to 200S, and more preferably 50 to 120S. Examples of blended staple fibers include, but are not limited to, staple fibers having a yarn count of 30S, 40S, 50S, 60S, 80S, 120S. When the blended fiber adopts short fiber, the blended fiber can be blended with cotton fiber. The cotton fiber is preferably long staple cotton. According to one embodiment of the invention, the blend fiber is selected from short fibers with the yarn number of 25-200S, and the cotton fiber is long staple cotton.

The blended fiber of the invention can also be obtained by blending a copolymer (PHBV) fiber of 3-hydroxybutyrate and 3-hydroxyvalerate and a polylactic acid (PLA) fiber. The PLA fiber of the present invention may be selected from short fibers having a yarn number of 25 to 200S, preferably 30 to 200S, and more preferably 50 to 120S. Examples of PLA staple fibers include, but are not limited to, staple fibers having a yarn count of 30S, 40S, 50S, 60S, 80S, 120S. The PHBV fiber of the present invention may be selected from short fibers having a yarn number of 25 to 200S, preferably 30 to 200S, and more preferably 50 to 120S. Examples of PHBV staple fibers include, but are not limited to, staple fibers having a 30S, 40S, 50S, 60S, 80S, 120S count. When short fibers are adopted as PLA and PHBV, the PLA and the PHBV can be blended with cotton fibers. The cotton fiber is preferably long staple cotton. According to one embodiment of the invention, the PLA fibers are selected from short fibers with a yarn count of 25-200S, the PHBV fibers are short fibers with a yarn count of 25-200S, and the cotton fibers are long stapled cotton.

The blend fiber of the present invention may be selected from filaments having a fineness of 25 to 300 deniers, preferably 30 to 200 deniers, and more preferably 50 to 180 deniers. Examples of blended filaments include, but are not limited to, filaments having a denier of 40, 50, 80, 100, 120, 150, or 180.

The blended fiber of the invention can also be obtained by blending a copolymer (PHBV) fiber of 3-hydroxybutyrate and 3-hydroxyvalerate and a polylactic acid (PLA) fiber. The PLA fiber of the present invention may be selected from filaments having a fineness of 25 to 300 deniers, preferably 30 to 200 deniers, and more preferably 50 to 180 deniers. Examples of PLA filaments include, but are not limited to, filaments having a denier of 40, 50, 80, 100, 120, 150, or 180. The PHBV fiber of the present invention may be selected from filaments having a fineness of 25 to 300 deniers, preferably 30 to 200 deniers, and more preferably 50 to 180 deniers. Examples of PHBV filaments include, but are not limited to, filaments having a denier of 40, 50, 80, 100, 120, 150, or 180. When the PLA fiber and the PHBV fiber are filaments, the PLA fiber and the PHBV fiber can not be blended with cotton fiber. According to one embodiment of the invention, the PLA fibers are selected from filaments having a denier of 25 to 300 and the PHBV fibers are selected from filaments having a denier of 25 to 300.

The textile articles of the present invention may be woven by conventional methods, such as weaving, knitting, and the like. In certain embodiments, the textile is obtained using a double weave (tatting), a triple weave (tatting), a double weave (knitting), or an inner and outer layer weave (knitting). And will not be described in detail herein.

The test methods used in the examples and comparative examples are described below:

the test was performed using AATCC100-2012 (evaluation method of antibacterial textiles).

The test bacteria include Staphylococcus aureus (ATCC 6538), Klebsiella pneumoniae (ATCC 4352), Candida albicans (ATCC 10231) and Trichophyton mentagrophytes (ATCC 9533). The sterilization is carried out by using an autoclave and treating for 15min at 121 ℃. The dilution medium was D/E neutralization Broth (D/E neutralling Broth).

Quantitative assessment of antibacterial activity was done 24 hours after exposure of the fabric to the bacteria. After incubation, the bacteria eluted from the fabric, calculated by calculating the percent reduction of bacteria.

Comparative example 1

The textile of this example comprises 40 wt% of the inner layer and 60 wt% of the outer layer. The inner layer is formed of filaments (80 denier) formed of a blend of 30 wt% of a copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate (PHBV) and 70 wt% of polylactic acid (PLA). The outer layer is formed of regenerated cellulose fibers (lyocell filaments having a fineness of 80 denier). The results are shown in Table 1.

Comparative example 2

The textile of this example is formed of 35 wt% of the inner layer and 65 wt% of the outer layer. The inner layer is formed of filaments (fineness 80 denier) formed of a blend of 30 wt% of copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate (PHBV) and 70 wt% of polylactic acid (PLA). The outer layer is formed from regenerated cellulose fibres (lyocell staple fibres having a yarn count of 60S). The results are shown in Table 1.

Comparison ofExample 3

The textile of this example is formed of 40 wt% inner layer and 60 wt% outer layer. The inner layer is formed of filaments (fineness 80 denier) formed of a blend of 30 wt% of copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate (PHBV) and 70 wt% of polylactic acid (PLA). The outer layer is formed from regenerated cellulose fibres (lyocell staple fibres having a yarn count of 60S). The results are shown in Table 1.

Example 1

The textile of this example is formed of 40 wt% inner layer and 60 wt% outer layer. The inner layer is formed by blending short fibers (yarn number is 60S) formed by 12 weight percent of copolymer (PHBV) of 3-hydroxybutyrate and 3-hydroxyvalerate and 28 weight percent of mixture of polylactic acid (PLA) and 60 weight percent of long stapled cotton. The outer layer is formed of regenerated cellulose fibers (lyocell filaments having a denier of 60). The results are shown in Table 1.

Comparative example 4

The textile of this example comprises 40 wt% of the inner layer and 60 wt% of the outer layer. The inner layer is formed by blending short fiber (yarn number is 60S) formed by 12 weight percent of copolymer (PHBV) of 3-hydroxybutyrate and 3-hydroxyvalerate and 28 weight percent of polylactic acid (PLA) mixture and 60 weight percent of long stapled cotton. The outer layer is formed from regenerated cellulose fibres (lyocell staple fibres having a yarn count of 60S). The results are shown in Table 1.

Comparative example 5

The textile of this example comprises 35 wt% of the inner layer and 65 wt% of the outer layer. The inner layer is formed by blending short fiber (yarn number is 60S) formed by 12 weight percent of copolymer (PHBV) of 3-hydroxybutyrate and 3-hydroxyvalerate and 28 weight percent of polylactic acid and 60 weight percent of long stapled cotton. The outer layer is formed from regenerated cellulose fibres (lyocell staple fibres having a yarn count of 60S). The results are shown in Table 1.

Comparative example 6

Will be provided withComparative example1 into a glove.

Comparative example 7

Will be provided withComparative example1 to make underwear.

Comparative example 8

Will be provided withComparative example1 to make socks.

TABLE 1

The present invention is not limited to the above-described embodiments, and any variations, modifications, and substitutions which may occur to those skilled in the art may be made without departing from the spirit of the invention.

Claims

1. A textile article, wherein the textile article is formed from 40 wt% of an inner layer and 60 wt% of an outer layer; the inner layer is formed by blending short fibers with yarn number of 60S and 60 wt% of long stapled cotton, wherein the short fibers are formed by 12 wt% of a copolymer of 3-hydroxybutyrate and 3-hydroxyvalerate and 28 wt% of polylactic acid; the outer layer is formed by Lyocell filaments with the fineness of 60 deniers;

the textiles were tested using AATCC100-2012, and the test bacteria included staphylococcus aureus ATCC 6538, klebsiella pneumoniae ATCC 4352, candida albicans ATCC 10231, and trichophyton mentagrophytes ATCC 9533; sterilizing by using a high-pressure kettle, and treating at 121 ℃ for 15 min; D/E neutralization Broth D/E neutralling Broth is adopted as a dilution medium; quantitative assessment of antibacterial activity by 24 hours after exposure of the textile to bacteria; after incubation, the bacteria eluted from the textile, calculated by calculating the percentage reduction of bacteria;

wherein the reduction percentage of staphylococcus aureus is more than or equal to 99.99 percent, the reduction percentage of klebsiella pneumoniae is more than or equal to 99.99 percent, the reduction percentage of candida albicans is more than or equal to 92.71 percent, and the reduction percentage of trichophyton mentagrophytes is more than or equal to 99.99 percent.

2. The textile of claim 1, wherein the textile is a sock, an undergarment, a coat, a bedding, an eye mask or a glove.