CN113604959A - Ultrathin spunlace non-woven fabric, preparation method thereof and mask - Google Patents
Ultrathin spunlace non-woven fabric, preparation method thereof and mask Download PDFInfo
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- CN113604959A CN113604959A CN202110767884.3A CN202110767884A CN113604959A CN 113604959 A CN113604959 A CN 113604959A CN 202110767884 A CN202110767884 A CN 202110767884A CN 113604959 A CN113604959 A CN 113604959A
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- woven fabric
- polyvinyl alcohol
- spunlace
- ultrathin
- fibers
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/425—Cellulose series
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/4309—Polyvinyl alcohol
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
- D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention belongs to the technical field of sanitary protective wearing articles, and particularly relates to an ultrathin spunlace non-woven fabric, a preparation method thereof and a mask. The preparation method of the ultrathin spunlace nonwoven fabric comprises the following steps: 1) preparing blended spunlace non-woven fabric of raw cotton fiber and polyvinyl alcohol fiber; 2) and (2) carrying out washing treatment on the blended spunlace non-woven fabric obtained in the step 1), and dissolving polyvinyl alcohol fibers to obtain the ultrathin spunlace non-woven fabric. Due to the adoption of blending of the raw cotton fibers and the polyvinyl alcohol fibers, the blended fabric can still maintain the performance requirements in the manufacturing or processing process under the condition of reducing the consumption of the raw cotton fibers; the polyvinyl alcohol fiber can be dissolved in water with higher temperature, so that the blended spun-laced non-woven fabric can be removed through simple washing treatment after being successfully obtained, and the ultra-thin spun-laced non-woven fabric with low gram weight can be obtained.
Description
Technical Field
The invention belongs to the technical field of sanitary protective wearing articles, and particularly relates to an ultrathin spunlace non-woven fabric, a preparation method thereof and a mask.
Background
The mask is mainly used for filtering particulate matters in air, preventing inhalation and diffusion of spray, blocking transmission of viruses and the like, thereby playing roles in preventing diseases and protecting body health. Most of the inner layers of the existing common plane protective masks are spun-bonded non-woven fabrics such as spun-bonded PP (polypropylene), which have hard hand feeling and are not comfortable enough to contact with skin; spunbond nonwoven fabrics also have exposed fiber ends that are prone to pilling or fiber drop formation and can be inhaled by humans.
The all-cotton spunlace non-woven fabric has comfortable hand feeling, is soft and skin-friendly and is environment-friendly, the existing products use the all-cotton spunlace non-woven fabric as the inner layer material of the mask, but due to technical limitation, the minimum gram weight of the existing spunlace non-woven fabric is 20g/m2Left and right, and the quality of finished cloth is poorer, the strength is low, and the cloth cover is not uniform; a fiber web having a weight lower than this is easily dispersed when subjected to high-pressure water jet hydroentangling, and the fibers are difficult to entangle with each other, and thus cannot be woven. And the non-woven fabrics with high gram weight can increase the filtration resistance and influence the smoothness of breathing.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an ultrathin spunlace non-woven fabric, a preparation method thereof and a mask.
The technical scheme provided by the invention is as follows:
a preparation method of ultrathin spunlace nonwoven fabric comprises the following steps:
1) preparing blended spunlace non-woven fabric of raw cotton fiber and polyvinyl alcohol fiber;
2) and (2) carrying out washing treatment on the blended spunlace non-woven fabric obtained in the step 1), and dissolving polyvinyl alcohol fibers to obtain the ultrathin spunlace non-woven fabric.
Since the non-woven fabric is easy to loosen in the manufacturing or processing process, the non-woven fabric has certain gram weight requirement in the prior art to meet the generation requirement.
In the technical scheme:
due to the adoption of blending of the raw cotton fibers and the polyvinyl alcohol fibers, the blended fabric can still maintain the performance requirements in the manufacturing or processing process under the condition of reducing the consumption of the raw cotton fibers, such as the requirements of longitudinal/transverse breaking strength, gram weight, thickness and the like, so that the spunlace can be carried out by adopting the existing equipment and process;
the polyvinyl alcohol fiber can be dissolved in water with higher temperature, so that the blended spun-laced non-woven fabric can be removed through simple washing treatment after being successfully obtained, and the ultra-thin spun-laced non-woven fabric with low gram weight can be obtained.
Specifically, the step 1) comprises the following steps: and mixing the polyvinyl alcohol fibers and the raw cotton fibers, and performing cleaning, carding, lapping and spunlacing to obtain the blended spunlaced non-woven fabric.
Specifically, in the step 2), a washing-off agent is adopted for washing-off treatment, and the temperature is more than 90 ℃. The rinse solution may be water. The polyvinyl alcohol fiber and the easily soluble impurities can be dissolved away by adopting high-temperature water.
On the basis, aiming at different purities of the raw materials, a refining agent, alkali liquor or hydrogen peroxide can be properly added to remove impurities such as wax, grease and the like, enhance the washing effect and rinse according to needs.
Specifically, the usage ratio of the raw cotton fibers to the polyvinyl alcohol fibers is 10: 1-1: 1.
The inventors have found that the amount of polyvinyl alcohol fibers to raw cotton fibers can be as high as 1:1, and that when produced in this ratio, a nonwoven fabric having the lowest grammage can be obtained, and the resulting nonwoven fabric can maintain the performance requirements of the manufacturing process.
The invention also provides the ultrathin spunlace non-woven fabric prepared by the preparation method.
The ultra-thin spunlace non-woven fabric provided by the technical scheme has low gram weight and high air permeability.
Specifically, the gram weight is 12-25 g/m2. The air permeability is about: 2000-4000 mm/s.
The gram weight of the ultrathin spunlace non-woven fabric provided by the technical scheme is lower than that of the ultrathin spunlace non-woven fabric in the prior art, and can be remarkably reduced to 12g/m2。
The invention also provides a mask, which at least comprises an inner layer and an outer side which are skin-friendly, wherein the fabric of the inner layer is the ultrathin spunlace non-woven fabric provided by the invention.
Under the condition that other materials are the same, the mask provided by the technical scheme is lighter and breathable. The mask is soft, skin-friendly, and good in air permeability, and is suitable for long-term wearing.
Specifically, the gauze mask includes the gauze mask body the both sides of gauze mask body are provided with the ear area respectively, the gauze mask body includes skin, intermediate level and inlayer, the inlayer is ultra-thin cotton water thorn non-woven fabrics layer.
Among the above-mentioned technical scheme, the outer droplet of preventing of gauze mask, the intermediate level is the filter layer, plays main filtration separation effect, and the inlayer is ultra-thin all cotton water thorn non-woven fabrics layer, soft close skin, moisture absorption, and ultra-thin structure makes it both soft close skin, can improve the unobstructed nature of breathing greatly again. Has more comfortable wearing performance than other existing masks.
Detailed Description
The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
In one embodiment, the ultra-thin spunlace nonwoven is prepared as follows:
1) clearing the flower: opening the mixed fiber raw material, screening impurities, and primarily carding the fibers, wherein the usage ratio of the raw cotton fibers to the polyvinyl alcohol fibers is 2: 1;
2) carding: combing the cotton fiber after primary processing into single fiber state, and further removing fine impurities;
3) lapping: spreading the carded cotton net in the direction of the cotton fiber, wherein the lapping process comprises straight lapping and cross lapping;
4) and (3) water jetting: continuously spraying high-pressure water flow to the fiber web to entangle the fibers, wherein the gram weight of the fibers is 30g/m2；
5) Bleaching: refining agent, alkali liquor and hydrogen peroxide solution are used for treatment, so that cotton fibers are degreased and bleached, and polyvinyl alcohol fibers are partially dissolved;
6) washing with water: after the dewatering water is dischargedInjecting clear water into a bleaching pot, heating to 90 deg.C, performing overflow washing for 5min to completely dissolve and remove the rest polyvinyl alcohol fiber in the non-woven fabric, discharging hot water, injecting clear water, performing overflow washing for 5min again to obtain all-cotton spunlace non-woven fabric with a gram weight of 20g/m2；
7) Acid washing: pickling the washed non-woven fabric, and adding concentrated sulfuric acid with the concentration of 98% into water, wherein the concentration of the concentrated sulfur is 0.5 g/L;
8) drying: and (4) drying the washed non-woven fabric by using a dryer.
The gram weight of the finally obtained all-cotton spunlace non-woven fabric is 20g/m2The thickness is 0.163mm, the longitudinal strength is 29.7N, the transverse strength is 10.6N, and the air permeability is 2585 mm/s;
in another embodiment, the ultra-thin spunlace nonwoven is prepared as follows:
1) clearing the flower: opening the mixed fiber raw material, screening to remove impurities, and primarily carding the fiber, wherein the using amount ratio of the raw cotton fiber to the polyvinyl alcohol fiber is 3: 2;
2) carding: combing the cotton fiber after primary processing into single fiber state, and further removing fine impurities;
3) lapping: spreading the carded cotton net in the direction of the cotton fiber, wherein the lapping process comprises straight lapping and cross lapping;
4) and (3) water jetting: continuously spraying high-pressure water flow to the fiber web to entangle the fibers, wherein the gram weight of the fibers is 25g/m2；
5) Bleaching: refining agent, alkali liquor and hydrogen peroxide solution are used for treatment, so that cotton fibers are degreased and bleached, and polyvinyl alcohol fibers are partially dissolved;
6) washing with water: injecting clear water into a bleaching pot after the dewatering and bleaching water is discharged, heating to 90 ℃, overflowing and washing for 6min to completely dissolve and remove the residual polyvinyl alcohol fibers in the non-woven fabric, discharging hot water, injecting clear water, overflowing and washing for 6min again to obtain the all-cotton spunlaced non-woven fabric with the gram weight of 15g/m2；
7) Acid washing: pickling the washed non-woven fabric, and adding concentrated sulfuric acid with the concentration of 98% into water, wherein the concentration of the concentrated sulfur is 0.5 g/L;
8) drying: and (4) drying the washed non-woven fabric by using a dryer.
The gram weight of the finally obtained all-cotton spunlace non-woven fabric is 15g/m2The thickness was 0.151mm, the longitudinal strength was 21.3N, the transverse strength was 7.6N, and the air permeability was 3661 mm/s.
In one embodiment, the ultra-thin spunlace nonwoven is prepared as follows:
1) clearing the flower: opening the mixed fiber raw material, screening impurities, and primarily carding the fibers, wherein the usage ratio of the raw cotton fibers to the polyvinyl alcohol fibers is 1: 1;
2) carding: combing the cotton fiber after primary processing into single fiber state, and further removing fine impurities;
3) lapping: spreading the carded cotton net in the direction of the cotton fiber, wherein the lapping process comprises straight lapping and cross lapping;
4) and (3) water jetting: continuously spraying high-pressure water flow to the fiber web to entangle the fibers, wherein the gram weight of the fibers is 24g/m2；
5) Bleaching: refining agent, alkali liquor and hydrogen peroxide solution are used for treatment, so that cotton fibers are degreased and bleached, and polyvinyl alcohol fibers are partially dissolved;
6) washing with water: injecting clear water into a bleaching pot after the dewatering and bleaching water is discharged, heating to 90 ℃, performing overflow washing for 8min to completely dissolve and remove the residual polyvinyl alcohol fibers in the non-woven fabric, discharging hot water, injecting clear water, performing overflow washing for 8min again to obtain all-cotton spunlaced non-woven fabric with the gram weight of 12g/m2；
7) Acid washing: pickling the washed non-woven fabric, and adding concentrated sulfuric acid with the concentration of 98% into water, wherein the concentration of the concentrated sulfur is 0.5 g/L;
8) drying: and (4) drying the washed non-woven fabric by using a dryer.
The gram weight of the finally obtained all-cotton spunlace non-woven fabric is 12g/m2The thickness is 0.155mm, the longitudinal strength is 15.8N, the transverse strength is 5.2N, and the air permeability is 4006 mm/s;
the method provided by the application can solve the problem that the existing spunlace technology cannot prepare ultrathinThe gram weight of the ultrathin non-woven fabric prepared by the method can be as low as 12g/m2The thickness is as low as 0.145mm, the air permeability is as high as 4000mm/s, the mask can be used as an inner layer/surface layer material of the mask to replace the existing inner layer/surface layer material of the mask, the mechanical property can be kept, the mask has ultrahigh air permeability, and the provided mask is lighter and more breathable. The mask is soft, skin-friendly, and good in air permeability, and is suitable for long-term wearing.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The preparation method of the ultrathin spunlace nonwoven fabric is characterized by comprising the following steps of:
1) preparing blended spunlace non-woven fabric of raw cotton fiber and polyvinyl alcohol fiber;
2) and (2) carrying out washing treatment on the blended spunlace non-woven fabric obtained in the step 1), and dissolving polyvinyl alcohol fibers to obtain the ultrathin spunlace non-woven fabric.
2. The method of preparing an ultra-thin spunlace nonwoven fabric according to claim 1, wherein step 1) comprises the steps of: and mixing the polyvinyl alcohol fibers and the raw cotton fibers, and performing cleaning, carding, lapping and spunlacing to obtain the blended spunlaced non-woven fabric.
3. A method for preparing an ultra-thin spunlace nonwoven fabric according to claim 1, wherein in step 2), the washing treatment is performed with water at a temperature of 90 degrees or higher.
4. A method of preparing an ultra-thin spunlace nonwoven fabric according to any of claims 1 to 3, characterized in that: the dosage ratio of the raw cotton fibers to the polyvinyl alcohol fibers is 10: 1-1: 1.
5. An ultra-thin spunlace nonwoven fabric prepared by the method for preparing an ultra-thin spunlace nonwoven fabric according to claim 1 or 4.
6. The ultra-thin hydroentangled nonwoven fabric according to claim 5, characterized in that: the gram weight is 12-25 g/m2。
7. A mask at least comprises an inner layer and an outer side which are close to the skin, and is characterized in that: the shell fabric of the inner layer is the ultrathin spunlace nonwoven fabric of claim 5 or 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110767884.3A CN113604959A (en) | 2021-07-07 | 2021-07-07 | Ultrathin spunlace non-woven fabric, preparation method thereof and mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110767884.3A CN113604959A (en) | 2021-07-07 | 2021-07-07 | Ultrathin spunlace non-woven fabric, preparation method thereof and mask |
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| CN113604959A true CN113604959A (en) | 2021-11-05 |
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| CN202110767884.3A Pending CN113604959A (en) | 2021-07-07 | 2021-07-07 | Ultrathin spunlace non-woven fabric, preparation method thereof and mask |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114108178A (en) * | 2021-12-07 | 2022-03-01 | 上海澜森过滤材料科技有限公司 | PTFE filter felt production process based on decrement method |
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2021
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Cited By (2)
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| CN114108178A (en) * | 2021-12-07 | 2022-03-01 | 上海澜森过滤材料科技有限公司 | PTFE filter felt production process based on decrement method |
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Application publication date: 20211105 |