CN111691059A - Light and thin non-woven fabric - Google Patents
Light and thin non-woven fabric Download PDFInfo
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- CN111691059A CN111691059A CN201910200338.4A CN201910200338A CN111691059A CN 111691059 A CN111691059 A CN 111691059A CN 201910200338 A CN201910200338 A CN 201910200338A CN 111691059 A CN111691059 A CN 111691059A
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- China
- Prior art keywords
- woven fabric
- light
- spunlace
- thin
- cotton
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- Pending
Links
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 75
- 229920000742 Cotton Polymers 0.000 claims abstract description 50
- 239000002608 ionic liquid Substances 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 229920002678 cellulose Polymers 0.000 claims abstract description 20
- 239000001913 cellulose Substances 0.000 claims abstract description 20
- 238000005517 mercerization Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000007598 dipping method Methods 0.000 claims abstract description 5
- 238000004061 bleaching Methods 0.000 claims abstract description 4
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 238000009835 boiling Methods 0.000 claims abstract description 4
- 238000009960 carding Methods 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 27
- 239000000243 solution Substances 0.000 claims description 16
- 239000003513 alkali Substances 0.000 claims description 11
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 6
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Substances C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims 2
- 239000012670 alkaline solution Substances 0.000 claims 1
- 239000002537 cosmetic Substances 0.000 claims 1
- 239000004627 regenerated cellulose Substances 0.000 abstract description 10
- 239000002994 raw material Substances 0.000 abstract description 4
- 230000000717 retained effect Effects 0.000 abstract description 3
- 239000002932 luster Substances 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 18
- 230000001815 facial effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000002585 base Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000003796 beauty Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- IAZSXUOKBPGUMV-UHFFFAOYSA-N 1-butyl-3-methyl-1,2-dihydroimidazol-1-ium;chloride Chemical compound [Cl-].CCCC[NH+]1CN(C)C=C1 IAZSXUOKBPGUMV-UHFFFAOYSA-N 0.000 description 1
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 229920006052 Chinlon® Polymers 0.000 description 1
- 229920002101 Chitin Polymers 0.000 description 1
- 229920000875 Dissolving pulp Polymers 0.000 description 1
- 229920000433 Lyocell Polymers 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 229940072056 alginate Drugs 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- D04H1/492—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 by fluid jet
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B7/00—Mercerising, e.g. lustring by mercerising
-
- 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
- D06M11/32—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 oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—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 oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
-
- 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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
- D06M15/05—Cellulose or derivatives thereof
-
- 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)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a light and thin non-woven fabric, which comprises the following steps: s1, preparing cotton fibers, and blowing, carding and lapping to obtain a cotton fiber net; s2, carrying out primary spunlace on the cotton fiber web obtained in the step S1 to obtain a spunlace non-woven fabric with the gram weight of 20-28 g/m 2; s3, guiding the non-woven fabric subjected to the primary spunlace into a lye tank for mercerization, and guiding out, boiling, bleaching and cleaning after liquid rolling; s4, dipping the mercerized non-woven fabric with water in a cellulose ionic liquid solution at normal temperature, and carrying out secondary spunlace and drying after liquid squeezing; and S5, washing with water, and drying for the second time to obtain a light and thin non-woven fabric finished product. The invention adopts the all-cotton non-woven fabric as the raw material, the non-woven fabric is subjected to mercerization treatment, and then the regenerated cellulose is retained in the cotton net of the non-woven fabric to form bonding points, so that the obtained non-woven fabric is light, thin, rich in luster, smooth in touch, and good in hygroscopicity and tensile resistance.
Description
Technical Field
The invention belongs to the technical field of non-woven fabrics, and particularly relates to a light and thin all-cotton non-woven fabric.
Background
The spunlace nonwoven fabric is formed by jetting high-pressure micro water flow onto one or more layers of fiber webs to enable the fibers to be mutually entangled, so that the fiber webs are reinforced and have certain strength, and the obtained fabric is the spunlace nonwoven fabric. The fiber raw materials are widely available, and can be terylene, chinlon, polypropylene fiber, viscose fiber, chitin fiber, superfine fiber, tencel, silk, bamboo fiber, wood pulp fiber, alginate fiber and the like. Compared with the needle-punched non-woven fabric, the gram weight of the needle-punched non-woven fabric is smaller, and the needle-punched non-woven fabric is suitable for being used as beauty treatment consumables such as masks and medical dressings.
Common application type facial masks can be divided into non-woven fabric facial masks, silk facial masks and gel facial masks according to the material of a carrier. The silk mask is light and comfortable and can penetrate into skin, wherein most of the base material non-woven fabrics are made of cotton linters or natural plant fibers through an organic solvent spinning process instead of silk. Because the output rate of the cotton linters is low and the goods sources are few, a large amount of cotton linters are imported at present, and the cotton linters, no matter the facial masks or the wet tissues, are disposable consumption materials and are difficult to recover; the technical difficulty of the non-woven fabric manufactured by the organic solvent spinning process lies in the spinning process, and the yield of the two non-woven fabrics is high. In addition, the light and thin mask is not easy to stretch and is easy to tear in the using process. How to obtain a low-cost light and thin non-woven fabric mask is one of the technical problems to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a light and thin non-woven fabric.
In order to achieve the purpose, the technical scheme of the invention is as follows: the preparation method of the light and thin non-woven fabric is characterized by comprising the following steps:
s1, preparing cotton fibers, and blowing, carding and lapping to obtain a cotton fiber net;
s2, carrying out primary spunlace on the cotton fiber web obtained in the step S1 to obtain a spunlace non-woven fabric with the gram weight of 20-28 g/m 2;
s3, guiding the non-woven fabric subjected to the primary spunlace into a lye tank for mercerization, and guiding out, boiling, bleaching and cleaning after liquid rolling;
s4, dipping the mercerized non-woven fabric with water in a cellulose ionic liquid solution at normal temperature, and carrying out secondary spunlace and drying after liquid squeezing;
and S5, washing with water, and drying for the second time to obtain the light and thin all-cotton non-woven fabric finished product.
The mercerized cotton fiber is changed into a cylinder from a spiral shape, the touch feeling is smooth, the moisture absorption is improved, but the length of the mercerized cotton fiber is shortened, the entanglement points formed after one-time spunlace are reduced, and the cellulose is directly regenerated and added into the cotton net by padding the cellulose ionic liquid solution, so that the bonding points in the cotton net are increased by two-time spunlace, the uniformity of the cotton net is ensured, and the stretching requirements of the facial mask wet tissue and other using states are met.
The preferable technical scheme is that the concentration of caustic soda in alkali liquor in S3 is 250-260 g/L, the temperature of the alkali liquor is 15-20 ℃, and the mercerization time is 20-30S. The lower alkali liquor concentration is selected, the mercerization temperature is reduced, the mercerization time is prolonged, the fiber expansion degree is controlled, and the increase of the compaction degree of the non-woven fabric due to expansion transition of cotton fibers is avoided.
In order to optimize the glossiness of the cotton fibers of the non-woven fabric and further improve the yarn strength, the preferable technical scheme is that the tension of the non-woven fabric in an alkali liquor tank in S3 is 0.3-0.5 bar, and the liquor carrying rate of S3 is 60-70%. The higher liquid carrying rate is selected to ensure that enough alkali liquor is used for wrapping the fibers in the liquid squeezing process, so that the fibers in the non-woven fabric are rearranged.
The preferable technical scheme is that the cellulose ionic liquid solution is prepared by dissolving cotton fibers in ionic liquid. The selection range of the ionic liquid is not limited, and the ionic liquid capable of dissolving cellulose can be used. The padding process is rapid, so that the dissolving degree of the normal-temperature ionic solution to the cotton fibers in the non-woven fabric is extremely low, and the normal feeding of the non-woven fabric is not influenced.
The preferable technical scheme is that the primary spunlace pressure is (6-11) × 105Pa, and the secondary spunlace pressure is (4-5) × 105 Pa. The length of cotton fibers in the mercerized non-woven fabric is reduced, the cellulose ionic liquid solution attached to the surfaces of the fibers in the non-woven fabric is colloidal after meeting water, new bonding points can be formed among loose fibers, secondary spunlace is used for flushing redundant cellulose ionic liquid solution away from the non-woven fabric, and the number of bonding points of regenerated cellulose can be controlled by smaller secondary spunlace pressure. If the water pressure is too high, the regenerated cellulose is easy to be flushed away from the non-woven fabric completely, so that the cloth surface of the non-woven fabric is loose.
The preferable technical scheme is that the weight percentage of cotton fibers in the cellulose ionic liquid solution is 10-15%, and the liquid carrying rate of S4 is 65-75%.
The preferable technical scheme is that the cotton fiber is absorbent cotton, and the ionic liquid is at least one of pyridine cationic liquid and imidazole cationic liquid.
The preferable technical scheme is that the primary spunlace and the secondary spunlace are both double-sided spunlace, and the spunlace temperature is 10-20 ℃.
The second objective of the present invention is to provide a light and thin nonwoven fabric, which is characterized by being prepared by the above method.
The invention also aims to provide application of the light and thin non-woven fabric in a beauty non-woven fabric base material, a medical dressing and a sanitary product non-woven fabric base material.
The invention has the advantages and beneficial effects that:
the method adopts the all-cotton non-woven fabric as the raw material, the non-woven fabric is mercerized, and the ionic liquid mixed solution is diluted by water to generate regenerated cellulose, the regenerated cellulose is subjected to secondary spunlace, part of the regenerated cellulose is retained in a cotton net of the non-woven fabric to form bonding points, and most of the regenerated cellulose flows out and is recovered along with the water flow of the spunlace;
the all-cotton non-woven fabric obtained by the method is light, thin and rich in luster, and has smooth touch and good moisture absorption and tensile resistance compared with the all-cotton non-woven fabric with the same gram weight;
the ionic liquid and regenerated cellulose in the preparation method can be recycled, and the utilization rate of raw materials is high.
Detailed Description
The following further describes embodiments of the present invention with reference to examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Ionic liquids
The selection range of the ionic liquid includes but is not limited to N-allyl pyridine chloride salt ionic liquid, 1-butyl-3-methylimidazole chloride salt and 1-allyl-3-methylimidazole chloride salt.
Cellulose ionic liquid solution
The cellulose in the cellulose ionic liquid solution can be cotton fiber, and can also be plant fiber with high cellulose content such as lignocellulose, fibrilia and the like.
Example 1 (abbreviation S1, the same applies hereinafter)
Example 1 a light and thin non-woven fabric, the preparation method of which comprises the following steps:
s1, preparing cotton fibers, and blowing, carding and lapping to obtain a cotton fiber net;
s2, carrying out primary spunlace on the cotton fiber web obtained in the step S1 to obtain a spunlace nonwoven fabric with the gram weight of 20g/m 2;
s3, guiding the non-woven fabric subjected to the primary spunlace into a lye tank for mercerization, and guiding out, boiling, bleaching and cleaning after liquid rolling;
s4, dipping the mercerized non-woven fabric with water in a cellulose ionic liquid solution at normal temperature, and carrying out secondary spunlace and drying after liquid squeezing;
and S5, washing with water, and drying for the second time to obtain the light and thin all-cotton non-woven fabric finished product.
In the embodiment 1, the concentration of caustic soda in the alkaline liquor in S3 is 270g/L, the temperature of the alkaline liquor is 30 ℃, and the mercerization time is 15S; the tension of the non-woven fabric in the lye tank in S3 is 0.2 bar, and the liquid carrying rate of S3 is 60 percent; the ionic liquid in the cellulose ionic liquid solution is N-allyl pyridinium chloride ionic liquid, the weight percentage of cellulose in the ionic liquid is 10%, the dipping time in S4 is 2h, and the liquid carrying rate of S4 is 65%; the primary spunlace and the secondary spunlace are both double-sided spunlace, and the spunlace temperature is 30 ℃.
Examples 2 to 3
Examples 2 to 3 are based on example 1, with the difference that the process parameters of the mercerization process are as follows:
in the embodiment 2S 3, the caustic soda concentration in the alkali liquor is 250g/L, the temperature of the alkali liquor is 20 ℃, and the mercerization time is 20S; the tension of the non-woven fabric in the lye tank in S3 is 0.5 bar, and the liquid carrying rate of S3 is 70 percent;
in the embodiment 3S 3, the caustic soda concentration in the alkali liquor is 260g/L, the temperature of the alkali liquor is 15 ℃, and the mercerization time is 30S; the tension of the non-woven fabric in the lye tank in S3 is 0.3 bar, and the liquid carrying rate of S3 is 65%;
examples 4 to 5
Examples 4-5 differ from example 3 in the hydroentangling process conditions:
example 4: the primary spunlace pressure is 11 × 105Pa, and the secondary spunlace pressure is 4 × 105 Pa; the spunlace temperature is 10 ℃;
example 5: the primary spunlace pressure is 6 × 105Pa, and the secondary spunlace pressure is 5 × 105 Pa; the spunlacing temperature is 20 ℃;
example 6
Example 6 is based on example 5, with the difference that: the weight percentage of cotton fiber in the cellulose ionic liquid solution is 15%, and the liquid carrying rate of S4 is 75%.
After mercerization, the length of cotton fibers in the non-woven fabric is shortened, entanglement points among the cotton fibers are reduced, and the tensile strength of the ground is slightly reduced;
in example 1, the degree of swelling of the mercerized cotton fibers is higher than that of examples 2 and 3, and accordingly, the length of the cotton fibers is shortened more, and although regenerated cellulose is introduced as a bonding point, the pressure of the secondary hydroentangling is higher and the retention amount of the regenerated cellulose is small in example 1, so that the tensile strength of example 1 is increased less. In example 6, the liquid carrying rate of S4 is increased, the secondary spunlace pressure is lower than that of example 1, so that the retained cellulose bonding points are increased, the dried fabric is relatively flat, and loose parts are less after surface friction.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The preparation method of the light and thin non-woven fabric is characterized by comprising the following steps:
s1, preparing cotton fibers, and blowing, carding and lapping to obtain a cotton fiber net;
s2, carrying out primary spunlace on the cotton fiber web obtained in the step S1 to obtain a spunlace non-woven fabric with the gram weight of 20-28 g/m 2;
s3, guiding the non-woven fabric subjected to the primary spunlace into a lye tank for mercerization, and guiding out, boiling, bleaching and cleaning after liquid rolling;
s4, dipping the mercerized non-woven fabric with water in a cellulose ionic liquid solution at normal temperature, and carrying out secondary spunlace and drying after liquid squeezing;
and S5, washing with water, and drying for the second time to obtain a light and thin non-woven fabric finished product.
2. The light and thin non-woven fabric according to claim 1, wherein the preparation method is characterized in that the concentration of caustic soda in the alkali liquor in S3 is 250-260 g/L, the temperature of the alkali liquor is 15-20 ℃, and the mercerization time is 20-30S.
3. The thin and light all-cotton nonwoven fabric according to claim 2, wherein the nonwoven fabric in the alkaline solution tank of S3 has a tension of 0.3-0.5 bar and a liquid carrying rate of S3 of 60-70%.
4. The thin and light non-woven fabric according to claim 1, wherein the cellulose ionic liquid solution is prepared by dissolving cotton fiber in ionic liquid.
5. The thin and light non-woven fabric according to claim 3, wherein the first hydroentangling pressure is (6-11) 105Pa, and the second hydroentangling pressure is (4-5) 105 Pa.
6. The thin and light all-cotton nonwoven fabric according to claim 4, wherein the weight percentage of the cotton fiber in the cellulose ionic liquid solution is 10-15%, and the liquid carrying rate of S4 is 65-75%.
7. The thin and light non-woven fabric according to claim 6, wherein the cotton fiber is absorbent cotton, and the ionic liquid is at least one of pyridine cationic liquid and imidazole cationic liquid.
8. The light and thin non-woven fabric according to claim 1, wherein the preparation method is characterized in that the primary spunlace and the secondary spunlace are both double-sided spunlace, and the spunlace temperature is 10-20 ℃.
9. A thin and light non-woven fabric, characterized in that it is produced by the method of any one of claims 1 to 8.
10. Use of the thin and light non-woven fabric according to claim 9 in cosmetic non-woven fabric substrates, medical dressings, sanitary non-woven fabric substrates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910200338.4A CN111691059A (en) | 2019-03-16 | 2019-03-16 | Light and thin non-woven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910200338.4A CN111691059A (en) | 2019-03-16 | 2019-03-16 | Light and thin non-woven fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111691059A true CN111691059A (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910200338.4A Pending CN111691059A (en) | 2019-03-16 | 2019-03-16 | Light and thin non-woven fabric |
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| Country | Link |
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| CN (1) | CN111691059A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529270A (en) * | 2021-07-06 | 2021-10-22 | 稳健医疗(武汉)有限公司 | Light and thin water-absorbing mercerized all-cotton non-woven fabric, preparation method and application thereof and disposable clothing |
-
2019
- 2019-03-16 CN CN201910200338.4A patent/CN111691059A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529270A (en) * | 2021-07-06 | 2021-10-22 | 稳健医疗(武汉)有限公司 | Light and thin water-absorbing mercerized all-cotton non-woven fabric, preparation method and application thereof and disposable clothing |
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Application publication date: 20200922 |