CN108754853B - Preparation method of adsorption type sanitary non-woven fabric base material and non-woven fabric - Google Patents
Preparation method of adsorption type sanitary non-woven fabric base material and non-woven fabric Download PDFInfo
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- CN108754853B CN108754853B CN201810498061.3A CN201810498061A CN108754853B CN 108754853 B CN108754853 B CN 108754853B CN 201810498061 A CN201810498061 A CN 201810498061A CN 108754853 B CN108754853 B CN 108754853B
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- woven fabric
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- fibers
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- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 45
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 title claims abstract description 11
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 110
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 69
- 244000146553 Ceiba pentandra Species 0.000 claims abstract description 37
- 235000003301 Ceiba pentandra Nutrition 0.000 claims abstract description 37
- 239000002738 chelating agent Substances 0.000 claims abstract description 31
- 238000007710 freezing Methods 0.000 claims abstract description 24
- 230000008014 freezing Effects 0.000 claims abstract description 24
- 239000003960 organic solvent Substances 0.000 claims abstract description 17
- 238000002791 soaking Methods 0.000 claims abstract description 6
- 230000001815 facial effect Effects 0.000 claims description 21
- 239000000758 substrate Substances 0.000 claims description 16
- 229910021645 metal ion Inorganic materials 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 13
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 9
- 229920001661 Chitosan Polymers 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims description 6
- 239000002344 surface layer Substances 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000012792 core layer Substances 0.000 claims description 4
- 238000004537 pulping Methods 0.000 claims description 4
- 239000002250 absorbent Substances 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims description 2
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000008188 pellet Substances 0.000 claims 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 6
- 150000002500 ions Chemical class 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 239000004744 fabric Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 7
- 239000010410 layer Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 229920001817 Agar Polymers 0.000 description 3
- VXLCKSFMONBCLQ-UHFFFAOYSA-N [Na]CC[Na] Chemical group [Na]CC[Na] VXLCKSFMONBCLQ-UHFFFAOYSA-N 0.000 description 3
- 239000008272 agar Substances 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 239000000686 essence Substances 0.000 description 3
- BEGBSFPALGFMJI-UHFFFAOYSA-N ethene;sodium Chemical group [Na].C=C BEGBSFPALGFMJI-UHFFFAOYSA-N 0.000 description 3
- 238000009616 inductively coupled plasma Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- QCUOBSQYDGUHHT-UHFFFAOYSA-L cadmium sulfate Chemical compound [Cd+2].[O-]S([O-])(=O)=O QCUOBSQYDGUHHT-UHFFFAOYSA-L 0.000 description 2
- WLZRMCYVCSSEQC-UHFFFAOYSA-N cadmium(2+) Chemical compound [Cd+2] WLZRMCYVCSSEQC-UHFFFAOYSA-N 0.000 description 2
- 229910000369 cadmium(II) sulfate Inorganic materials 0.000 description 2
- 230000009920 chelation Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 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
- 206010006784 Burning sensation Diseases 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 206010020112 Hirsutism Diseases 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229940072056 alginate Drugs 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 229940037001 sodium edetate Drugs 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005303 weighing Methods 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
- D04H1/42—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
-
- 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
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
-
- 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
- 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
- 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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/325—Amines
- D06M13/342—Amino-carboxylic acids; Betaines; Aminosulfonic acids; Sulfo-betaines
-
- 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
-
- 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)
- Absorbent Articles And Supports Therefor (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention discloses a preparation method of an adsorption type sanitary non-woven fabric base material, which comprises the steps of organic solvent soaking, sodium hydroxide solution treatment, freezing, chelating agent solution padding, lapping and piercing into cloth and the like, wherein the concentration of sodium hydroxide in the sodium hydroxide solution is 100-150 g/L. The lipophilic substances on the surface of the kapok fiber are removed by soaking with the organic solvent, the fracture of the kapok fiber perpendicular to the axial direction of the fiber is aggravated by treating with the sodium hydroxide solution, more fiber truncation and incomplete fracture are generated, the port opening is facilitated by freezing, the treated kapok fiber has stronger adsorption capacity, and the adsorption comprises adsorption of powder and heavy metal ions on the surface of the skin. The invention also discloses an adsorption type sanitary non-woven fabric base material and application thereof.
Description
Technical Field
The invention belongs to the technical field of non-woven fabrics, and particularly relates to a preparation method of an adsorption type sanitary non-woven fabric base material and a non-woven fabric.
Background
The spunlace nonwoven fabric is obtained by jetting high-pressure micro water flow onto one or more fiber webs to entangle fibers with each other, so that the fiber webs are reinforced and have certain strength.
The aggravation of environmental pollution, the use of pigment powder or some poor skin care products of long-time use makeup, can lead to facial skin's heavy metal ion accumulation, exceed standard even, and the concrete expression is: discomfort, burning sensation, allergy, rough skin, increased color spots and black spots, and large pores. 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 materials of the facial masks are different, the corresponding metal ion adsorption modes are also different, chelating agents with metal chelation effects, such as disodium ethylene diamine tetraacetate, tetrasodium ethylene diamine tetraacetate, sodium ethylene diamine tetraacetate, chitosan and the like, are usually added into the essences of the non-woven facial masks and the silk facial masks, and algae fibers with good adsorption on metal ions, such as alginate fibers, are added into the gel facial masks.
The rate of chelating to heavy metal ion adsorption has been decided to the water holding performance in the non-woven fabrics facial mask, no matter silk facial mask or non-woven fabrics facial mask among the prior art, the essence can have the drippage phenomenon, and the chelating agent distributes unevenly promptly, and then leads to facial heavy metal ion chelation inhomogeneous, consequently, is necessary to carry out institutional advancement to the non-woven fabrics substrate among the prior art.
Disclosure of Invention
One of the objectives of the present invention is to overcome the drawbacks of the prior art, and to provide a method for preparing an adsorption-type sanitary non-woven fabric substrate, in which an organic solvent is used to dissolve oil-soluble substances on the surface of kapok fibers to enhance the hydrophilicity of the kapok fibers, mechanical friction and impact treatment in alkali solution is combined with freezing treatment to increase the fracture or incomplete fracture of the kapok fibers along the transverse fibers, and the capillary action of the kapok fibers enhances the adsorptivity, which not only serves as a carrier of chelating agents, but also increases the adsorption capacity for heavy metal ions and/or chelates.
In order to achieve the purpose, the technical scheme of the invention is as follows: a preparation method of an adsorption type sanitary non-woven fabric base material is characterized by comprising the following steps:
s1, soaking the kapok fiber in an organic solvent, and drying;
s2, transferring the kapok fiber into a sodium hydroxide solution for dispersion, heating and rubbing or stirring at a high speed or pulping, cleaning and drying;
s3, putting the kapok fiber in a sealed box with water at the temperature lower than-40 ℃ for freezing, then introducing dry air into the sealed box and vacuumizing to obtain dry fiber, padding the dry fiber by adopting a metal ion chelating agent solution, and drying to obtain chelating agent treated fiber;
s4, preparing surface layer fibers, paving the fibers and the surface layer fibers in sequence according to the treatment of the chelating agent, and obtaining the adsorption type sanitary non-woven fabric substrate through needling or spunlace, rinsing and drying;
the concentration of the sodium hydroxide in the sodium hydroxide solution is 100-150 g/L.
The preferable technical scheme is that the dry fiber in S3 also comprises hydrophilic fiber, and the hydrophilic fiber and the kapok fiber are uniformly mixed and then are put in a sealed box for freezing.
The preferable technical scheme is that the weight ratio of the hydrophilic fiber to the kapok fiber of the core layer is 1: (3-5), the liquid carrying rate of the mixed fiber is 100-110%.
The preferable technical scheme is that the organic solvent in S1 is dichloromethane or diethyl ether.
The preferable technical proposal is that the solute chelating agent in the metal ion chelating agent solution is at least one or the combination of more than two of sodium ethylene diamine tetracetate, disodium ethylene diamine tetracetate and chitosan.
The preferable technical scheme is that the heating temperature of the sodium hydroxide solution in S1 is 45-55 ℃, and the time duration is 60-120 min.
The preferable technical scheme is that the freezing temperature in the freezing step is-70 to-60 ℃, and the freezing treatment time is 24 to 48 hours.
The preferable technical scheme is that the concentration of solute in the metal ion chelating agent solution is 2-6 g/L, and the dry fiber is subjected to padding at normal temperature and then cooled to 5-10 ℃ and stands for 12-24 hours.
The present invention also provides an absorbent sanitary nonwoven fabric substrate, which is prepared by the above method for preparing an absorbent sanitary nonwoven fabric substrate.
The invention also aims to provide application of the adsorption sanitary non-woven fabric substrate in wet-type facial skin contact non-woven fabric products, wherein the wet-type facial skin contact non-woven fabric products comprise a facial mask, wet tissues, compressed particles and makeup removing cotton.
The invention has the advantages and beneficial effects that:
the oleophilic slow-release non-woven fabric takes the kapok fiber as an inner layer material, oil-soluble substances on the surface of the kapok fiber are dissolved in an organic solvent, the kapok fiber can be suspended in a sodium hydroxide solution, the fracture of the kapok fiber perpendicular to the axial direction of the fiber can be aggravated by scrubbing, pulping or high-speed stirring, more fiber truncation and incomplete fractures are generated, the incomplete fractures can be propped open by water crystals introduced by freezing treatment, the fiber truncation is further increased, the treated kapok fiber has stronger adsorption capacity due to the capillary action of the hollow fiber, and the adsorption comprises the adsorption of powder and heavy metal ions on the surface of the skin;
because the kapok fiber in the non-woven fabric fiber is not extruded by other yarns, the cavity of the non-woven fabric fiber is not easily flattened, and the chelating agent loaded on the fiber, particularly the chelating agent loaded in the cavity of the kapok fiber, is stably adsorbed and does not drop and transfer along with essence of the mask;
the hollow fiber and the chelating agent act together to accelerate the chelating reaction speed of metal ions;
the main components of the treated cotton fiber are cellulose and hemicellulose, and the cotton fiber has good skin-friendly property.
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.
Hydrophilic fiber
The hydrophilic fiber includes, but is not limited to, natural plant fibers having hydrophilic groups on the fiber surface, such as cotton fibers, bamboo fibers, and regenerated fibers having hydrophilic groups on the fiber surface, such as soybean fibers and viscose fibers. Because the scale layer of the wool fiber has poor skin-friendly property, the hydrophilic fiber also comprises modified mercerized wool fiber with hydrophilic property.
Organic solvent
The organic solvent is selected from organic solvent capable of dissolving oil soluble substances such as wax on the surface of kapok fiber, and acetonitrile and tetrahydrofuran. Diethyl ether and dichloromethane are convenient to recover.
Example 1
Example 1 a method for preparing an adsorption type sanitary non-woven fabric substrate, comprising the steps of:
s1, soaking the kapok fiber in an organic solvent, and drying;
s2, transferring the kapok fiber into a sodium hydroxide solution for dispersion, heating and rubbing or stirring at a high speed or pulping, cleaning and drying;
s3, putting the kapok fiber in a sealed box with water at the temperature of-45 ℃ for freezing, then introducing dry air into the sealed box and vacuumizing to obtain dry fiber, padding the dry fiber by adopting a metal ion chelating agent solution, and drying to obtain chelating agent treated fiber;
s4, preparing surface layer fibers, paving the fibers and the surface layer fibers in sequence according to the treatment of the chelating agent, and obtaining the adsorption type sanitary non-woven fabric substrate through needling or spunlace, rinsing and drying;
the concentration of sodium hydroxide in the sodium hydroxide solution is 100 g/L; the organic solvent in S1 is diethyl ether; the heating temperature of the sodium hydroxide solution treatment in S1 is 45 ℃, and the time duration is 120 min. The freezing treatment time is 12 h; the concentration of solute sodium ethylene diamine tetracetate and disodium ethylene diamine tetracetate in the metal ion chelating agent solution is 1g/L in a weight ratio of 1:1, and the metal ion chelating agent solution is a weakly acidic chitosan solution.
Example 2
Example 2 is based on example 1 with the difference that the concentration of sodium hydroxide in the sodium hydroxide solution is 150 g/L; the heating temperature of the sodium hydroxide solution treatment in S1 is 55 ℃, and the time duration is 60 min. The freezing temperature in the freezing step is-70 ℃, and the freezing treatment time is 24 h.
Example 3
Example 3 is based on example 2 with the difference that the sodium hydroxide solution treatment in S1 was heated at a temperature of 50 c for a period of 90 min. In the freezing step, the freezing temperature is-60 ℃, and the freezing treatment time is 48 hours; the concentration of solute chitosan in the metal ion chelating agent solution is 2g/L, and the metal ion chelating agent solution is a weakly acidic chitosan solution.
Example 4
Example 4 is different from example 3 in that the dry fibers in S3 further include hydrophilic fibers, and the hydrophilic fibers and kapok fibers are uniformly mixed and then placed in a sealed box for freezing. The weight ratio of the hydrophilic fiber to the kapok fiber of the core layer is 1: 3, the liquid carrying rate of the mixed fiber is 100 percent, the concentration of solute in the metal ion chelating agent solution is 6g/L, and the chelating agent is chitosan.
Example 5
The weight ratio of the hydrophilic fiber to the kapok fiber of the core layer is 1: 5, the liquid carrying rate of the mixed fiber was 110%.
Example 6
The difference between the embodiment 6 and the embodiment 5 is that the dry fiber is padded at normal temperature, cooled to 5-10 ℃, kept stand for 12-24 hours, and then dried.
Comparative example
Comparative example 1 kapok fiber soaked in organic solvent was used as the inner layer fiber;
comparative example 2 kapok fibers soaked with an organic solvent and treated with a sodium hydroxide solution were used as the inner layer fibers, and the processes of organic solvent soaking and sodium hydroxide solution treatment were the same as in example 1.
Examples and comparative examples adsorption performance tests for cadmium:
weighing 7.68g of CdSO4 & 8/3H2O, adding the CdSO4 & 8/3H2O into 300 ml of distilled water to prepare an ionic solution, adding 6.3g of agar powder into the solution, heating to dissolve the agar powder, introducing the solution into a watch glass while the solution is hot, and cooling and solidifying the solution; the non-woven fabrics obtained in the examples and the comparative examples are cut into 10cm by 10cm samples and are applied to the agar for 10 min; ashing and acidifying the non-woven fabric, adding water into a 50ml volumetric flask, adding 5ml of liquid, adding water to the volumetric flask to reach 50ml, and testing the concentration of cadmium ions in the non-woven fabric by using an ICP2060T type ICP single-channel scanning inductively coupled plasma emission spectrometer. The mask adsorption (mg/cm 2) = (C metal 10 50ml 10-3)/100 m2, wherein C metal is the metal content measured by ICP, mg/L.
| Test specimen | Example 1 | Example 2 | Example 3 | Example 4 |
| Adsorption capacity of facial mask (mg/cm)2） | 0.09 | 0.09 | 0.11 | 0.15 |
| Test specimen | Example 5 | Example 6 | Comparative example 1 | Comparative example 2 |
| Adsorption capacity of facial mask (mg/cm)2） | 0.17 | 0.18 | 0.04 | 0.05 |
After the non-woven fabrics in the examples 1 and 2 are dried, the hairiness of the inner surface is more than that of the non-woven fabrics in the examples 3-6, the hydrophilic fiber of the inner layer in the examples 3-6 is taken as the entanglement fiber, the kapok fiber is stably restrained among the hydrophilic fiber, or the kapok fiber is entangled with the hydrophilic fiber, and the surface is more smooth when the non-woven fabrics are used as dry towels. Although the oil-soluble substances on the surface of the kapok fiber are removed by the organic solvent, the surface is relatively smooth, the water carrying rate is low, and therefore the hydrophilic fiber also serves as a water retention fiber for freezing treatment.
The later steps of the production of the non-woven fabric need rinsing and drying, and because the water solubility of the sodium ethylene diamine tetracetate and the disodium ethylene diamine tetracetate in the embodiment 1, the chelating agent positioned on the surface of the fiber can be lost along with the rinsing water flow, and the chelating agent positioned in the middle cavity of the kapok fiber can be maintained, so that the absorption capacity of the cadmium ion facial mask of the embodiments 1-3 is less than that of the embodiments 4-6.
The chelating agents of examples 4-6 used chitosan, which was slightly more stable in the nonwoven than sodium edetate and disodium edetate.
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 (8)
1. A preparation method of an adsorption type sanitary non-woven fabric base material is characterized by comprising the following steps:
s1, soaking the kapok fiber in an organic solvent, and drying;
s2, transferring the kapok fiber into a sodium hydroxide solution for dispersion, heating and rubbing or stirring at a high speed or pulping, cleaning and drying;
s3, putting the kapok fiber in a sealed box with water at the temperature lower than-40 ℃ for freezing, then introducing dry air into the sealed box and vacuumizing to obtain dry fiber, padding the dry fiber by adopting a metal ion chelating agent solution, and drying to obtain chelating agent treated fiber;
s4, preparing surface layer fibers, paving the fibers and the surface layer fibers in sequence according to the treatment of the chelating agent, and obtaining the adsorption type sanitary non-woven fabric substrate through needling or spunlace, rinsing and drying;
the concentration of sodium hydroxide in the sodium hydroxide solution is 100-150 g/L; the dry fibers in the S3 also comprise hydrophilic fibers, the hydrophilic fibers and the kapok fibers are uniformly mixed and then placed in a sealed box for freezing, and the heating temperature of the sodium hydroxide solution treatment in the S1 is 45-55 ℃, and the time duration is 60-120 min.
2. The method for preparing an adsorption-type sanitary non-woven fabric substrate according to claim 1, wherein the weight ratio of the hydrophilic fiber to the kapok fiber of the core layer is 1: (3-5), the liquid carrying rate of the mixed fiber is 100-110%.
3. The method for preparing an adsorption-type sanitary non-woven fabric substrate according to claim 1, wherein the organic solvent in S1 is dichloromethane or diethyl ether.
4. The method for preparing an adsorption-type sanitary non-woven fabric substrate according to claim 1, wherein the solute chelating agent in the metal ion chelating agent solution is at least one selected from the group consisting of sodium ethylenediaminetetraacetate, disodium ethylenediaminetetraacetate, and chitosan, or a combination of two or more thereof.
5. The preparation method of the adsorption type sanitary non-woven fabric base material according to claim 1, wherein the freezing temperature in the freezing step is-70 to-60 ℃, and the freezing treatment time is 24 to 48 hours.
6. The method for preparing an adsorption-type sanitary non-woven fabric substrate according to claim 1, wherein the concentration of the solute in the metal ion chelating agent solution is 2 to 6g/L, and the dry fiber is padded at normal temperature and then cooled to 5 to 10 ℃ and kept standing for 12 to 24 hours.
7. An adsorption-type sanitary nonwoven fabric substrate produced by the method for producing an adsorption-type sanitary nonwoven fabric substrate according to any one of claims 1 to 6.
8. The use of the absorbent sanitary non-woven fabric substrate according to claim 7 in wet-type facial skin contact non-woven fabric products including facial masks, wet wipes, compressed pellets, makeup removing cotton.
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