CN114351335B - Hydrogel three-dimensional interval textile material, application thereof and mask comprising hydrogel three-dimensional interval textile material - Google Patents
Hydrogel three-dimensional interval textile material, application thereof and mask comprising hydrogel three-dimensional interval textile material Download PDFInfo
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- CN114351335B CN114351335B CN202111586313.6A CN202111586313A CN114351335B CN 114351335 B CN114351335 B CN 114351335B CN 202111586313 A CN202111586313 A CN 202111586313A CN 114351335 B CN114351335 B CN 114351335B
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- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention provides a hydrogel three-dimensional interval textile material, wherein the hydrogel three-dimensional interval textile material comprises two surface layers and an intermediate layer formed by connecting yarns for connecting the two surface layers; wherein at least the connecting yarns are hydrogel composite yarns. The invention also provides application of the hydrogel three-dimensional interval textile material in firefighters or masks and a mask. The product made of the hydrogel three-dimensional interval textile material provided by the invention has good elasticity due to the three-dimensional interval textile, and the hollow structure between the layers of the three-dimensional interval textile contains a large amount of air, so that the product has high air permeability and light overall mass, and thus has excellent water absorbability, air permeability, softness and portability. In addition, the middle layer formed by the hydrogel yarns is covered by the upper surface layer and the lower surface layer, so that the water in the hydrogel is not easy to evaporate, and the water retention in the hydrogel is not obviously reduced after long-term use or storage.
Description
Technical Field
The invention relates to a hydrogel three-dimensional interval textile material, application of the hydrogel three-dimensional interval textile material and a mask containing the hydrogel three-dimensional interval textile material.
Background
Hydrogels are a class of extremely hydrophilic three-dimensional network structure gels that swell rapidly in water and can hold large volumes of water in the swollen state without dissolution.
Hydrogels are widely used as a high water-absorbing and high-water-retaining material in various fields, such as: drought resistance in arid areas, masks in cosmetics, defervescing patches, analgesic patches, agricultural films, dew prevention agents in buildings, humidity control agents, water shutoff agents in petrochemical industry, dehydration of crude oil or finished oil, dust suppression agents in mining industry, antistaling agents in foods, thickening agents, drug carriers in medical treatment, and the like.
SUMMARY OF THE PATENT FOR INVENTION
The invention provides a novel hydrogel material which has excellent water absorbability, air permeability, softness and portability.
In one aspect, the present invention provides a hydrogel three-dimensional spacer textile material, characterized in that it comprises two surface layers and an intermediate layer consisting of connecting yarns connecting the two surface layers; wherein at least the connecting yarns are hydrogel composite yarns.
On the other hand, the invention also provides application of the hydrogel three-dimensional interval textile material in firefighters or masks.
On the other hand, the invention also provides a mask, wherein the mask comprises a mask body and a hanging belt, and at least one layer of the mask body is made of the hydrogel three-dimensional interval textile material.
In order to increase the water absorption, it is a common approach to consider increasing the thickness of the hydrogel fabric. However, as the thickness increases, the hydrogel fabric has a hard hand, poor breathability, and is heavy. The user wears the product made of the gel-comfortable fabric, and the comfort is poor.
The product made of the hydrogel three-dimensional interval textile material provided by the invention has good elasticity due to the fact that the hollow structure between the layers of the three-dimensional interval textile contains a large amount of air, and can provide high air permeability and light overall mass, so that the hydrogel three-dimensional interval textile material has excellent water absorbability, air permeability, softness and portability. In addition, the middle layer formed by the hydrogel yarns is covered by the upper surface layer and the lower surface layer, so that the water in the hydrogel is not easy to evaporate, and the water retention in the hydrogel is not obviously reduced after long-term use or storage.
Detailed Description
The invention provides a hydrogel three-dimensional interval textile material, which is characterized by comprising two surface layers and an intermediate layer formed by connecting yarns for connecting the two surface layers; wherein at least the connecting yarns are hydrogel composite yarns.
In order to provide a higher water holding capacity, in a preferred embodiment the thickness of the intermediate layer woven from the hydrogel yarns is 3-100mm, preferably 20-80mm, more preferably 40-60mm.
In order to provide a higher water holding capacity, in a preferred embodiment the thickness of the hydrogel in the connecting yarns is 0.1-0.5mm, preferably 0.2-0.4mm.
In order to provide a higher water holding capacity, in a preferred embodiment the fineness of the connecting yarns is 8-20 tex (tex), preferably 10-15 tex, and the fineness of the upper and lower surface yarns is 10-15 tex, preferably 12-14 tex.
In order to provide a higher water holding capacity, in a preferred embodiment, the connecting yarn has a density (the density is the transverse density multiplied by the longitudinal density) of 30 to 200 roots/cm 2 Preferably 100-150 roots/cm 2 。
In order to provide a higher water holding capacity, in a preferred embodiment at least one of the two surface layers is impregnated with hydrogel or woven from hydrogel yarns; preferably, at least one of the two surface layers is woven from hydrogel yarns.
The hydrogel yarns that make up the skin layer may be the same as or different from, and preferably different from, the hydrogel yarns that make up the middle layer. Preferably, the hydrogel yarns constituting the surface layer have a smaller diameter than the hydrogel yarns constituting the intermediate layer; preferably, the hydrogel in the hydrogel yarns constituting the skin layer has a smaller thickness than the hydrogel in the hydrogel yarns constituting the intermediate layer.
In order to provide a higher water holding capacity, in a preferred embodiment both surface layers are impregnated with hydrogel or woven from hydrogel yarns.
In another preferred embodiment, at least one surface layer is woven from colored yarns, so that a more aesthetically pleasing article can be produced.
The hydrogel three-dimensional interval textile material provided by the invention can be used for scenes with high requirements on continuously providing moist environment, for example, can be used for fire-fighting equipment such as fire-fighting clothing, shoes, socks, gloves, caps, masks and the like. These devices, because of the high moisture content of the hydrogel three-dimensional spacer textile material, are not easily burned by fire.
When the hydrogel three-dimensional interval textile material provided by the invention is used for preparing a mask, the mask can be an anti-drying mask (in a very dry environment, the hydrogel three-dimensional interval textile material contains a large amount of moisture and can provide a moist small environment), an anti-fogging mask (the hydrogel in the mask is pre-dried and absorbs the exhaled water vapor), a fire mask or a welding mask (the hydrogel three-dimensional interval textile material contains a large amount of moisture and is not easy to catch fire).
The invention also provides a mask, wherein the mask comprises a mask body and a hanging belt, and at least one layer of the mask body is made of the hydrogel three-dimensional interval textile material.
In a preferred embodiment, the hydrogel three-dimensional spacer textile material forms the outer layer of the mask, for example, for fire protection, welding.
In a preferred embodiment, the hydrogel three-dimensional spaced textile material comprises a mask, such as an anti-fog mask, a dryness-resistant mask.
The hydrogel yarn used in the invention is prepared by the following method:
a. immersing the yarn in a hydrogel slurry containing monomers, initiator, cross-linking agent for 1-10 minutes, preferably 5-8 minutes;
b. initiating a crosslinking reaction by ultraviolet light or at the temperature of 20-50 ℃ for 0.5-3 hours to form hydrogel composite yarns;
c. immersing the hydrogel composite yarn obtained in step b in a starch slurry at a temperature of 20-40 ℃ for 1-25 minutes, preferably 8-18 minutes;
d. and c, drying the hydrogel composite yarn coated with the starch slurry obtained in the step c at the temperature of 60-100 ℃ for 3-4 hours.
The weight ratio of the monomer, the initiator and the crosslinking agent can be conventional, preferably the weight ratio between the monomer, the initiator and the crosslinking agent is 1:0.001-0.05:0.001 to 0.1, more preferably 1:0.01-0.05:0.01-0.1.
The monomer is not particularly limited, and conventional monomers for preparing hydrogels, such as polyacrylic acid, polymethacrylic acid, polyacrylamide, poly-N-polyacrylate, preferably, acrylic acid or acrylamide; the initiator is not particularly limited, and conventional initiators for preparing hydrogels, such as persulfate, preferably ammonium persulfate or potassium persulfate, may be used; the crosslinking agent is not particularly limited, and conventional crosslinking agents for preparing hydrogels, such as acrylic acid ester-based crosslinking agents and polyhydric alcohol-based crosslinking agents, preferably N, N' -methylenebisacrylamide, may be used.
In order to obtain a hydrogel yarn having an antibacterial effect, preferably, the hydrogel slurry further contains an antibacterial agent.
The antibacterial agent may be an antibacterial agent conventional in the art, preferably, the antibacterial agent is Ag nanoparticle.
Preferably, the hydrogel slurry further contains a pH-sensitive component and/or a temperature-sensitive component to obtain a temperature-sensitive hydrogel fiber, a pH-sensitive hydrogel fiber, or a hydrogel fiber sensitive to both temperature and pH.
Wherein, the pH sensitive component can be a conventional pH component, preferably polyacrylic acid and phenolphthalein, and the temperature sensitive component can be a conventional temperature sensitive component, preferably poly (N-isopropyl acrylamide).
In order to obtain hydrogel fibers that are sensitive to both temperature and pH, the pH and temperature dual-responsive sensitive component is preferably polyvinylpyrrolidone.
The starch slurry is not particularly limited, and may be a conventional starch slurry containing, for better abrasion resistance: starch: 10-50 parts by weight of a lubricant; sodium hydroxide or potassium hydroxide: 0.5-2 parts by weight of sodium carbonate or potassium carbonate: 5-10 parts by weight; water: 100-300 parts by weight.
In order to further facilitate the subsequent knitting procedure of the hydrogel yarn, in a preferred embodiment or mode, the starch sizing rate ((weight of starch/weight of yarn after sizing) ×100%) is 2-15%, preferably 5-10%; the thickness of the starch layer is 0.1-0.2mm.
The yarn is not particularly limited and may be synthetic or natural, and preferably, the yarn is one or more of cotton yarn, hemp fiber, silk, viscose fiber, and chitosan fiber.
The starch is not particularly limited, and preferably, the starch is corn starch, potato starch, sweet potato starch, wheat starch or tapioca starch.
The hydrogel three-dimensional interval textile material provided by the invention can be used for weaving non-hydrogel yarns and the hydrogel yarns prepared according to the method together according to a preset standard through a double-needle bed circular knitting machine or a double-needle bed high-speed warp knitting machine, for example, the three-dimensional interval textile material is only woven by the middle layer by the hydrogel yarns, or the three-dimensional interval textile material is woven by the middle layer and one or two surfaces by the hydrogel yarns.
When the three-dimensional interval textile material provided by the invention is used, the three-dimensional interval textile material can be soaked in water to remove the peripheral layer of the starch layer, or the peripheral layer of the starch layer can be removed in advance, and the three-dimensional interval textile material is determined according to actual use conditions.
Example 1
Dipping 15.5tex polyester multifilament in hydrogel sizing agent (the hydrogel sizing agent contains acrylic acid, ammonium persulfate and N, N' -methylene bisacrylamide in a weight ratio of 1:0.01:0.01) for 5 minutes, and irradiating the hydrogel sizing agent for 2 hours under ultraviolet rays to form hydrogel composite yarns;
wherein, the weight ratio of the polyester multifilament to the hydrogel slurry is 1:0.15;
the hydrogel composite yarn is immersed in starch slurry (tapioca starch: 10 parts by weight; sodium hydroxide: 0.5 parts by weight; sodium carbonate: 5 parts by weight; water: 100-parts by weight) for 25 minutes, and the weight ratio of the hydrogel composite yarn to the starch slurry is 1:0.1;
the obtained hydrogel composite yarn coated with the starch slurry is dried for 4 hours at the temperature of 60 ℃, and the thickness of a starch layer in the hydrogel composite yarn coated with the starch slurry is 0.1mm (sizing rate is 5 percent);
the hydrogel three-dimensional interval textile material is woven by a double-needle bed circular knitting machine, wherein the upper surface and the lower surface are woven by the same 14.5tex polypropylene yarns, connecting wires of the middle layer are prepared by the prepared hydrogel composite yarns, and the density of the hydrogel composite yarns is 190 pieces/cm 2 The thickness of the middle layer is 37.9mm;
the obtained hydrogel three-dimensional interval textile material 1 is placed in water to remove a starch layer, the hydrogel layer in the hydrogel composite yarn is 0.3mm, and the fineness of the composite yarn is 17.83dtex.
Example 2
Dipping 15.5tex polyester multifilament in hydrogel slurry (the hydrogel slurry contains acrylamide, potassium persulfate and N, N' -methylene bisacrylamide in a weight ratio of 1:0.02:0.02) for 10 minutes, and irradiating the mixture for 3 hours under ultraviolet rays to form hydrogel composite yarns;
wherein, the weight ratio of the polyester multifilament to the hydrogel slurry is 1:0.2;
the hydrogel composite yarn was immersed in a starch slurry (corn starch: 50 parts by weight; sodium hydroxide: 2 parts by weight; sodium carbonate: 10 parts by weight; water: 300 parts by weight) for 5 minutes, the weight ratio of the hydrogel composite yarn to the starch slurry being 1:0.15;
the obtained hydrogel composite yarn coated with the starch slurry is dried for 3 hours at the temperature of 100 ℃, and the thickness of a starch layer in the hydrogel composite yarn coated with the starch slurry is 0.2mm (sizing rate is 15 percent);
knitting water by double needle bed circular knitting machineThe gel three-dimensional interval textile material, wherein the upper surface and the lower surface are woven by adopting the same 14.5tex polypropylene yarn, the connecting wire of the middle layer is prepared by adopting the prepared hydrogel composite yarn, and the density of the hydrogel composite yarn is 200 pieces/cm 2 The thickness of the middle layer is 27.8mm;
the obtained hydrogel three-dimensional interval textile material 2 is placed in water to remove a starch layer, the hydrogel layer in the hydrogel composite yarn is 0.4mm, and the fineness of the composite yarn is 18.6tex.
Example 3
Dipping 10tex terylene monofilament into hydrogel slurry (the hydrogel slurry contains acrylamide, potassium persulfate and N, N' -methylene bisacrylamide in a weight ratio of 1:0.03:0.03) for 4 minutes, and reacting for 3 hours at the temperature of 30 ℃ to form hydrogel composite yarns;
wherein, the weight ratio of the terylene monofilament to the hydrogel slurry is 1:0.1;
the hydrogel composite yarn was immersed in a starch slurry (potato starch: 30 parts by weight; potassium hydroxide: 1 part by weight; potassium carbonate: 6 parts by weight; water: 200 parts by weight) for 15 minutes, and the weight ratio of the hydrogel composite yarn to the starch slurry was 1:0.1;
the obtained hydrogel composite yarn coated with the starch slurry is dried for 3.5 hours at the temperature of 80 ℃, and the thickness of a starch layer in the hydrogel composite yarn coated with the starch slurry is 0.15mm (sizing rate is 10 percent);
the hydrogel three-dimensional interval textile material is knitted by a double-needle bed high-speed warp knitting machine, wherein the upper surface and the lower surface are knitted by the same 14.5tex polypropylene yarn fiber, connecting wires of the middle layer are prepared by the prepared hydrogel, and the density of the hydrogel composite yarn is 100 pieces/cm 2 The thickness of the middle layer is 35.2mm;
the obtained hydrogel three-dimensional interval textile material 3 is placed in water to remove a starch layer, the hydrogel layer in the hydrogel composite yarn is 0.2mm, and the fineness of the composite yarn is 11tex.
Example 4
Dipping 10tex terylene monofilament in hydrogel slurry (the hydrogel slurry contains acrylic acid, ammonium persulfate, N' -methylene bisacrylamide and nano silver in a weight ratio of 1:0.035:0.035:0.001) for 5 minutes, and irradiating for 2 hours under ultraviolet rays to form hydrogel composite yarns;
wherein, the weight ratio of the terylene monofilament to the hydrogel slurry is 1:0.15;
the hydrogel composite yarn was immersed in a starch slurry (tapioca starch: 10 parts by weight; sodium hydroxide: 0.5 parts by weight; sodium carbonate: 5 parts by weight; water: 150 parts by weight) for 25 minutes, the weight ratio of the hydrogel composite yarn to the starch slurry being 1:0.1;
the obtained hydrogel composite yarn coated with the starch slurry is dried for 4 hours at the temperature of 60 ℃, and the thickness of a starch layer in the hydrogel composite yarn coated with the starch slurry is 0.12mm (sizing rate is 8 percent);
the hydrogel three-dimensional interval textile material is knitted by a double-needle bed high-speed warp knitting machine, wherein the upper surface and the lower surface are knitted by the same 14.5tex polypropylene yarns, connecting wires of the middle layer are prepared by the prepared hydrogel, and the density of the hydrogel composite yarn is 70 pieces/cm 2 The thickness of the middle layer is 34.1mm;
the obtained hydrogel three-dimensional interval textile material 4 is placed in water to remove a starch layer, the hydrogel layer in the hydrogel composite yarn is 0.3mm, and the fineness of the composite yarn is 11.5tex.
Example 5
Dipping 10tex terylene monofilament in hydrogel sizing agent (the hydrogel sizing agent contains acrylic acid, ammonium persulfate, N' -methylene bisacrylamide and polyvinylpyrrolidone in a weight ratio of 1:0.04:0.04:0.001) for 5 minutes, and irradiating the hydrogel sizing agent for 3 hours under ultraviolet rays to form hydrogel composite yarns;
wherein, the weight ratio of the terylene monofilament to the hydrogel slurry is 1:0.3;
the hydrogel composite yarn was immersed in a starch slurry (tapioca starch: 10 parts by weight; sodium hydroxide: 0.5 parts by weight; sodium carbonate: 5 parts by weight; water: 150 parts by weight) for 25 minutes, the weight ratio of the hydrogel composite yarn to the starch slurry being 1:0.15;
the obtained hydrogel composite yarn coated with the starch slurry is dried for 4 hours at the temperature of 60 ℃, and the thickness of a starch layer in the hydrogel composite yarn coated with the starch slurry is 0.12mm (sizing rate is 8 percent);
the hydrogel three-dimensional interval textile material is knitted by a double needle bed high-speed warp knitting machine, wherein the upper surface and the lower surface are knitted by the same 14.5tex polypropylene yarn, connecting wires of the middle layer are prepared by the prepared hydrogel, and the density of the hydrogel composite yarn is 65 pieces/cm 2 The thickness of the middle layer is 28.8mm;
the obtained hydrogel three-dimensional interval textile material 5 is placed in water to remove a starch layer, the hydrogel layer in the hydrogel composite yarn is 0.5mm, and the fineness of the composite yarn is 13tex.
Comparative example 1
The hydrogel yarn obtained from example 1 was woven into a double layer fabric to obtain a comparative hydrogel fabric 1. The comparative hydrogel fabric 1 had a very hard hand.
Comparative example 2
After the polyester multifilament yarn used in example 1 was woven into a double layer fabric, the hydrogel was impregnated into the fabric by the procedure of impregnating hydrogel in example 1, to obtain a comparative hydrogel fabric 2. The comparative hydrogel fabric 2 had a very hard hand.
Performance testing
The hydrogel three-dimensional spacer textile materials 1-5 obtained in example 1-5 and the comparative hydrogel fabrics 1-2 were tested for fabric strength (GB/T3923.1-2013), water absorption and thickness error rate (standard error/average) using a fabric stretcher, dry weighing, fabric thickness gauge method, respectively. The results are shown in the following table:
from the above table, it can be seen that: the gel fabric obtained by weaving the hydrogel yarns in multiple layers has hard hand feeling and poor comfort, and the water absorption rate is far lower than that of the three-dimensional interval hydrogel fabric. The hydrogel fabric obtained by impregnating the hydrogel with the common double-layer fabric has the defects of hard hand feeling, poor comfort and quite poor water absorption.
Claims (9)
1. A hydrogel three-dimensional spacer textile material, characterized in that it comprises two surface layers and an intermediate layer consisting of connecting yarns connecting the two surface layers; wherein at least the connecting yarns are hydrogel composite yarns; the thickness of the middle layer woven by the hydrogel composite yarn is 20-80mm; the density of the connecting yarn is 65-200 pieces/cm 2 The method comprises the steps of carrying out a first treatment on the surface of the The yarns for weaving the two surface layers are one or more of cotton yarns, fibrilia, silk, viscose fibers, polypropylene and chitosan fibers.
2. The hydrogel three-dimensional spacer textile material of claim 1, wherein the thickness of the hydrogel in the connecting yarns is 0.1-0.5mm.
3. The hydrogel three-dimensional spacer textile material of claim 1, wherein the fineness of the connecting yarns is 8-20 tex and the fineness of the yarns of the upper and lower surface layers is 10-15 tex.
4. A hydrogel three-dimensional spacer textile material according to any one of claims 1 to 3, wherein at least one of the two surface layers is impregnated with hydrogel or woven from hydrogel composite yarns.
5. A hydrogel three-dimensional spacer textile material according to any one of claims 1 to 3, wherein both surface layers are impregnated with hydrogel or woven from hydrogel composite yarns.
6. A hydrogel three-dimensional spacer textile material according to any one of claims 1 to 3, wherein at least one surface layer is woven from coloured yarns.
7. Use of the hydrogel three-dimensional spacer textile material of any one of claims 1-6 in a firefighter uniform or mask.
8. The use according to claim 7, wherein the mask is a medical mask, an anti-fogging mask, a fire mask or a welding mask.
9. A mask comprising a mask body and a hanging strap, wherein at least one layer of the mask body is made of the hydrogel three-dimensional space textile material according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111586313.6A CN114351335B (en) | 2021-12-22 | 2021-12-22 | Hydrogel three-dimensional interval textile material, application thereof and mask comprising hydrogel three-dimensional interval textile material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111586313.6A CN114351335B (en) | 2021-12-22 | 2021-12-22 | Hydrogel three-dimensional interval textile material, application thereof and mask comprising hydrogel three-dimensional interval textile material |
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| Publication Number | Publication Date |
|---|---|
| CN114351335A CN114351335A (en) | 2022-04-15 |
| CN114351335B true CN114351335B (en) | 2024-03-15 |
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| RU2721513C2 (en) * | 2015-04-28 | 2020-05-19 | Спиннова Ой | Chemical method and system for making yarns from fibers |
| KR102625923B1 (en) * | 2016-01-14 | 2024-01-16 | 데이진 가부시키가이샤 | Light letters and medical materials |
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| CN114351335A (en) | 2022-04-15 |
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