CN112895638A - Ammonia-elasticity-free antibacterial polylactic acid fabric and preparation method thereof - Google Patents

Ammonia-elasticity-free antibacterial polylactic acid fabric and preparation method thereof Download PDF

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Publication number
CN112895638A
CN112895638A CN202110305127.4A CN202110305127A CN112895638A CN 112895638 A CN112895638 A CN 112895638A CN 202110305127 A CN202110305127 A CN 202110305127A CN 112895638 A CN112895638 A CN 112895638A
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China
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fabric
layer
polylactic acid
coating
antibacterial
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CN202110305127.4A
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Chinese (zh)
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陈晓盟
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Suzhou Menghong New Material Technology Co ltd
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Suzhou Menghong New Material Technology Co ltd
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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    • B32B38/00—Ancillary operations in connection with laminating processes
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    • B32B38/00—Ancillary operations in connection with laminating processes
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    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
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    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B32B2262/065—Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
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    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/212—Electromagnetic interference shielding
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
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    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Woven Fabrics (AREA)
  • Laminated Bodies (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

The application discloses ammonia-elasticity-free antibacterial polylactic acid fabric and a preparation method thereof, and the ammonia-elasticity-free antibacterial polylactic acid fabric comprises a fabric body, weft threads and warp threads, wherein the outer layer of the fabric is in thermal bonding connection with the outer side surface of the antibacterial layer of the fabric, the outer side surface and the inner side surface of the middle layer of the fabric are respectively coated with the first coating and the second coating, the antibacterial layer of the fabric is in thermal bonding connection with the outer side surface of the middle layer of the fabric, and the middle layer of the fabric is in thermal bonding connection with the outer side. Be provided with first coating, second coating and the antibiotic layer of surface fabric in the inside of surface fabric body, first coating and second coating are nano silver coating material, and nano silver coating material has the function of protecting against radiation, antibiotic, inhibiting dirty, and is soft, ventilative, resistant washing, and what the antibiotic layer of surface fabric adopted is bamboo fiber fabric, and bamboo fiber fabric has characteristics such as good gas permeability, hydroscopicity in the twinkling of an eye, stronger wearability and good dyeability, has natural antibiotic, antibacterial, remove mite, deodorant and ultraviolet resistance function.

Description

Ammonia-elasticity-free antibacterial polylactic acid fabric and preparation method thereof
Technical Field
The application relates to a polylactic acid fabric, in particular to an ammonia-elasticity-free antibacterial polylactic acid fabric and a preparation method thereof.
Background
Polylactic acid fiber is a completely biodegradable synthetic fiber, which can be obtained from grains. The waste products can be decomposed into carbon dioxide and water in soil or seawater through the action of microorganisms, and the carbon dioxide and water can not emit toxic gas and cause pollution during combustion, so that the carbon dioxide-containing ecological fiber is a sustainable ecological fiber.
Polylactic acid fiber polylactic acid is a polyhydroxy acid, lactic acid is a carbohydrate generated by lactobacillus, is a common natural compound in organisms (including human bodies), can be used for obtaining high molecular weight polylactic acid through chemical polymerization of lactic acid cyclic dimer or direct polymerization of lactic acid, is a product obtained by taking the polylactic acid as a raw material, has good biocompatibility and biological absorbability and good biodegradability, and has the best heat resistance in PLA (polylactic acid) degradable thermoplastic polymer materials.
Traditional polylactic acid surface fabric is functional single, breeds the bacterium in the inside of surface fabric body easily when long-term the use, has certain potential safety hazard to the human body, and some polylactic acid surface fabrics stretch-proofing ability at present are general simultaneously, and the deformation phenomenon appears easily after the tensile. Therefore, the ammonia-elasticity-free antibacterial polylactic acid fabric and the preparation method thereof are provided for solving the problems.
Disclosure of Invention
An ammonia-elasticity-free antibacterial polylactic acid fabric comprises a fabric body, weft threads and warp threads;
the fabric body comprises an outer fabric layer, an antibacterial fabric layer, a first coating, an intermediate fabric layer, a second coating and an inner fabric layer, wherein the outer fabric layer is in thermal bonding connection with the outer side of the antibacterial fabric layer;
the fabric middle layer comprises the wefts and the warps, the wefts comprise first transverse lines and second transverse lines, the first transverse lines and the second transverse lines are distributed at intervals, the warps comprise first longitudinal lines and second longitudinal lines, and the first longitudinal lines and the second longitudinal lines are distributed at intervals.
Furthermore, the outer layer of the fabric is made of polypropylene fabric, and the thickness of the outer layer of the fabric is 0.2-0.3 mm.
Furthermore, the fabric antibacterial layer is made of bamboo fiber fabric, and the thickness of the fabric antibacterial layer is 0.3-0.4 mm.
Further, the first coating and the second coating both adopt nano-silver coating materials, and the thicknesses of the first coating and the second coating are both 0.1-0.15 mm.
Furthermore, the fabric middle layer is formed by weaving the weft and the warp, and the thickness of the fabric middle layer is 0.4-0.5 mm.
Further, the first transverse line and the first longitudinal line are both made of polylactic acid fibers, and the second transverse line and the second longitudinal line are both made of polyester fibers.
Furthermore, the inner layer of the fabric is made of pure cotton fabric, and the thickness of the inner layer of the fabric is 0.3-0.4 mm.
Furthermore, a hot melt adhesive powder dot coating is filled among the outer layer of the fabric, the antibacterial layer of the fabric and the inner layer of the fabric.
Further, the overall thickness of the fabric body is 1.3-1.75 mm.
Further, the preparation method comprises the following steps:
firstly, preparing polylactic acid yarns and polyester yarns, weaving the polylactic acid yarns and the polyester yarns in a warp and weft knitting machine in an alternate mode at the weaving temperature of 30-45 ℃ to obtain polylactic acid fabrics, wherein the polylactic acid fabrics can be enhanced in stretching capacity by adding the polyester yarns;
secondly, preparing a nano silver coating in advance, uniformly coating the nano silver material on two sides of the polylactic acid fabric by adopting a sputtering process, and forming an oxygen filtering film outside the silver fibers by a laser process and secondary plating to isolate the oxygen filtering film from oxygen, so that the oxidation resistance of the fabric is greatly improved;
compounding the fabric, namely compounding the fabric antibacterial layer on the outer side surface of the polylactic acid fabric, compounding the fabric outer layer on the outer side surface of the fabric antibacterial layer, and compounding the fabric inner layer on the inner side surface of the polylactic acid fabric, wherein the compounding process adopts a hot melt adhesive powder point coating compounding process, hot melt adhesive is filled between the fabric layers for adhesion, and the processing temperature is 80-85 ℃;
and (IV) fabric shaping, namely cleaning the processed fabric body by a washing machine at the washing temperature of 60-65 ℃, and finally placing the molded fabric body in a shaping machine for shaping at the shaping temperature of 120-130 ℃ at the shaping speed of 10-12 m/min.
The beneficial effect of this application is: the application provides an ammonia-elasticity-free antibacterial polylactic acid fabric with antibacterial capability and strong stretch resistance and a preparation method thereof.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic overall perspective view of an embodiment of the present application;
FIG. 2 is a schematic diagram of the overall internal structure of an embodiment of the present application;
FIG. 3 is a view of the warp and weft connections of one embodiment of the present application;
FIG. 4 is a flow chart of a method according to an embodiment of the present application.
In the figure: 1. the fabric comprises a fabric body, 2, a fabric outer layer, 3, a fabric antibacterial layer, 4, a first coating, 5, a fabric intermediate layer, 6, a second coating, 7, a fabric inner layer, 8, wefts, 81, a first transverse line, 82, a second transverse line, 9, warps, 91, a first longitudinal line, 92 and a second longitudinal line.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1-4, an ammonia-free elastic antibacterial polylactic acid fabric comprises a fabric body 1, weft threads 8 and warp threads 9;
the fabric body 1 comprises an outer fabric layer 2, an antibacterial fabric layer 3, a first coating 4, an intermediate fabric layer 5, a second coating 6 and an inner fabric layer 7, wherein the outer fabric layer 2 is in heat bonding connection with the outer side of the antibacterial fabric layer 3, the first coating 4 and the second coating 6 are respectively coated on the outer side and the inner side of the intermediate fabric layer 5, the antibacterial fabric layer 3 is in heat bonding connection with the outer side of the intermediate fabric layer 5, and the intermediate fabric layer 5 is in heat bonding connection with the outer side of the inner fabric layer 7;
the fabric intermediate layer 5 includes the weft 8 and the warp 9, the weft 8 includes a first transverse line 81 and a second transverse line 82, the first transverse line 81 and the second transverse line 82 are distributed at intervals, the warp 9 includes a first longitudinal line 91 and a second longitudinal line 92, and the first longitudinal line 91 and the second longitudinal line 92 are distributed at intervals.
Further, the outer layer 2 of the fabric is made of polypropylene fabric, and the thickness of the outer layer 2 of the fabric is 0.2-0.3 mm.
Further, the fabric antibacterial layer 3 is made of bamboo fiber fabric, and the thickness of the fabric antibacterial layer 3 is 0.3-0.4 mm.
Further, the first coating 4 and the second coating 6 both adopt nano-silver coating materials, and the thicknesses of the first coating 4 and the second coating 6 are both 0.1-0.15 mm.
Further, the fabric intermediate layer 5 is formed by weaving the weft 8 and the warp 9, and the thickness of the fabric intermediate layer 5 is 0.4-0.5 mm.
Further, polylactic acid fibers are used for the first transverse threads 81 and the first longitudinal threads 91, and polyester fibers are used for the second transverse threads 82 and the second longitudinal threads 92.
Furthermore, the inner layer 7 of the fabric is made of pure cotton fabric, and the thickness of the inner layer 7 of the fabric is 0.3-0.4 mm.
Furthermore, a hot melt adhesive powder dot coating is filled among the fabric outer layer 2, the fabric antibacterial layer 3 and the fabric inner layer 7.
Further, the overall thickness of the fabric body 1 is 1.3-1.75 mm.
Further, the preparation method comprises the following steps:
firstly, preparing polylactic acid yarns and polyester yarns, weaving the polylactic acid yarns and the polyester yarns in a warp and weft knitting machine in an alternate mode at the weaving temperature of 30-45 ℃ to obtain polylactic acid fabrics, wherein the polylactic acid fabrics can be enhanced in stretching capacity by adding the polyester yarns;
secondly, preparing a nano silver coating in advance, uniformly coating the nano silver material on two sides of the polylactic acid fabric by adopting a sputtering process, and forming an oxygen filtering film outside the silver fibers by a laser process and secondary plating to isolate the oxygen filtering film from oxygen, so that the oxidation resistance of the fabric is greatly improved;
compounding the fabric, namely compounding the fabric antibacterial layer 3 on the outer side surface of the polylactic acid fabric, compounding the fabric outer layer 2 on the outer side surface of the fabric antibacterial layer 3, and compounding the fabric inner layer 7 on the inner side surface of the polylactic acid fabric, wherein the compounding process adopts a hot melt adhesive powder point coating compounding process, hot melt adhesives are filled between the fabric layers for adhesion, and the processing temperature is 80-85 ℃;
and (IV) fabric shaping, namely cleaning the processed fabric body 1 by a washing machine at the washing temperature of 60-65 ℃, and finally placing the molded fabric body 1 in a shaping machine for shaping, wherein the shaping temperature is 120-130 ℃, and the shaping speed is 10-12 m/min.
The application has the advantages that: the first coating, the second coating and the fabric antibacterial layer are arranged inside the fabric body, the first coating and the second coating are made of nano-silver coating materials, the nano-silver coating materials have the functions of radiation protection, antibiosis and dirt suppression, and are soft, breathable and washable, the fabric antibacterial layer is made of bamboo fiber fabric, the bamboo fiber fabric has the characteristics of good breathability, instant water absorption, strong wear resistance, good dyeing property and the like, and has the functions of natural antibiosis, bacteriostasis, mite removal, deodorization and ultraviolet resistance; the fabric intermediate layer is formed by weaving warps and wefts, and the warps and the wefts are distributed at intervals by adopting polyester fibers and polylactic acid fibers, so that the stretching capacity of the fabric is enhanced.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The ammonia-elasticity-free antibacterial polylactic acid fabric is characterized in that: comprises a fabric body (1), wefts (8) and warps (9);
the fabric body (1) comprises an outer fabric layer (2), an antibacterial fabric layer (3), a first coating (4), an intermediate fabric layer (5), a second coating (6) and an inner fabric layer (7), wherein the outer fabric layer (2) is in heat bonding connection with the outer side of the antibacterial fabric layer (3), the first coating (4) and the second coating (6) are respectively coated on the outer side and the inner side of the intermediate fabric layer (5), the antibacterial fabric layer (3) is in heat bonding connection with the outer side of the intermediate fabric layer (5), and the intermediate fabric layer (5) is in heat bonding connection with the outer side of the inner fabric layer (7);
the fabric intermediate layer (5) comprises the weft (8) and the warp (9), the weft (8) comprises a first transverse line (81) and a second transverse line (82), the first transverse line (81) and the second transverse line (82) are distributed at intervals, the warp (9) comprises a first longitudinal line (91) and a second longitudinal line (92), and the first longitudinal line (91) and the second longitudinal line (92) are distributed at intervals.
2. The ammonia-free elastic antibacterial polylactic acid fabric according to claim 1, which is characterized in that: the outer layer (2) of the fabric is made of polypropylene fabric, and the thickness of the outer layer (2) of the fabric is 0.2-0.3 mm.
3. The ammonia-free elastic antibacterial polylactic acid fabric according to claim 1, which is characterized in that: the fabric antibacterial layer (3) is made of bamboo fiber fabric, and the thickness of the fabric antibacterial layer (3) is 0.3-0.4 mm.
4. The ammonia-free elastic antibacterial polylactic acid fabric according to claim 1, which is characterized in that: the first coating (4) and the second coating (6) are made of nano-silver coating materials, and the thicknesses of the first coating (4) and the second coating (6) are 0.1-0.15 mm.
5. The ammonia-free elastic antibacterial polylactic acid fabric according to claim 1, which is characterized in that: the fabric intermediate layer (5) is formed by weaving the weft (8) and the warp (9), and the thickness of the fabric intermediate layer (5) is 0.4-0.5 mm.
6. The ammonia-free elastic antibacterial polylactic acid fabric according to claim 1, which is characterized in that: the first transverse line (81) and the first longitudinal line (91) both adopt polylactic acid fibers, and the second transverse line (82) and the second longitudinal line (92) both adopt polyester fibers.
7. The ammonia-free elastic antibacterial polylactic acid fabric according to claim 1, which is characterized in that: the inner layer (7) of the fabric is made of pure cotton fabric, and the thickness of the inner layer (7) of the fabric is 0.3-0.4 mm.
8. The ammonia-free elastic antibacterial polylactic acid fabric according to claim 1, which is characterized in that: and hot melt adhesive powder dot coatings are filled among the fabric outer layer (2), the fabric antibacterial layer (3) and the fabric inner layer (7).
9. The ammonia-free elastic antibacterial polylactic acid fabric according to claim 1, which is characterized in that: the overall thickness of the fabric body (1) is 1.3-1.75 mm.
10. A production method using the method according to any one of claims 1 to 10, characterized in that:
the preparation method comprises the following steps:
firstly, preparing polylactic acid yarns and polyester yarns, weaving the polylactic acid yarns and the polyester yarns in a warp and weft knitting machine in an alternate mode at the weaving temperature of 30-45 ℃ to obtain polylactic acid fabrics, wherein the polylactic acid fabrics can be enhanced in stretching capacity by adding the polyester yarns;
secondly, preparing a nano silver coating in advance, uniformly coating the nano silver material on two sides of the polylactic acid fabric by adopting a sputtering process, and forming an oxygen filtering film outside the silver fibers by a laser process and secondary plating to isolate the oxygen filtering film from oxygen, so that the oxidation resistance of the fabric is greatly improved;
compounding the fabric, namely compounding the fabric antibacterial layer (3) on the outer side surface of the polylactic acid fabric, compounding the fabric outer layer (2) on the outer side surface of the fabric antibacterial layer (3), and compounding the fabric inner layer (7) on the inner side surface of the polylactic acid fabric, wherein the compounding process adopts a hot melt adhesive powder point coating compounding process, hot melt adhesive is filled between fabric layers for adhesion, and the processing temperature is 80-85 ℃;
and (IV) fabric shaping, namely cleaning the processed fabric body (1) by a washing machine at the washing temperature of 60-65 ℃, and finally placing the shaped fabric body (1) in a shaping machine for shaping at the shaping temperature of 120-130 ℃ at the shaping speed of 10-12 m/min.
CN202110305127.4A 2021-03-23 2021-03-23 Ammonia-elasticity-free antibacterial polylactic acid fabric and preparation method thereof Pending CN112895638A (en)

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CN113787805A (en) * 2021-09-17 2021-12-14 济南海泰新材料有限公司 Oxidation-resistant coating cloth

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CN211591661U (en) * 2019-12-20 2020-09-29 吴江市旭云纺织后整理有限公司 Novel waterproof stretch-proof chemical fiber fabric
CN211994478U (en) * 2019-09-10 2020-11-24 绍兴蓝远针织有限公司 Antibacterial fabric
CN112281477A (en) * 2020-10-14 2021-01-29 江苏和茧丝绸科技有限公司 Preparation method of nano-silver pure cotton fabric with antibacterial function

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CN110962425A (en) * 2018-09-28 2020-04-07 江阴芗菲服饰有限公司 Preparation method of polylactic acid fiber antibacterial blended fabric
CN211994478U (en) * 2019-09-10 2020-11-24 绍兴蓝远针织有限公司 Antibacterial fabric
CN211591661U (en) * 2019-12-20 2020-09-29 吴江市旭云纺织后整理有限公司 Novel waterproof stretch-proof chemical fiber fabric
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* Cited by examiner, † Cited by third party
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