CN103459694B - thermoplastic non-woven fabric - Google Patents
thermoplastic non-woven fabric Download PDFInfo
- Publication number
- CN103459694B CN103459694B CN201180069807.5A CN201180069807A CN103459694B CN 103459694 B CN103459694 B CN 103459694B CN 201180069807 A CN201180069807 A CN 201180069807A CN 103459694 B CN103459694 B CN 103459694B
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- CN
- China
- Prior art keywords
- nonwoven fabric
- fiber
- less
- width
- hygienic material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 126
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 23
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 138
- 239000000463 material Substances 0.000 claims abstract description 39
- -1 polypropylene Polymers 0.000 claims description 31
- 239000004743 Polypropylene Substances 0.000 claims description 9
- 229920001155 polypropylene Polymers 0.000 claims description 9
- 229920000098 polyolefin Polymers 0.000 claims description 5
- 206010021639 Incontinence Diseases 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 abstract description 3
- 239000002250 absorbent Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 32
- 238000004519 manufacturing process Methods 0.000 description 27
- 239000003795 chemical substances by application Substances 0.000 description 15
- 238000009987 spinning Methods 0.000 description 13
- 239000004744 fabric Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 150000005846 sugar alcohols Polymers 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 4
- 229920005992 thermoplastic resin Polymers 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000004902 Softening Agent Substances 0.000 description 3
- 235000011187 glycerol Nutrition 0.000 description 3
- 238000005984 hydrogenation reaction Methods 0.000 description 3
- 150000002885 octadecanoids Chemical class 0.000 description 3
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- XDOFQFKRPWOURC-UHFFFAOYSA-N 16-methylheptadecanoic acid Chemical compound CC(C)CCCCCCCCCCCCCCC(O)=O XDOFQFKRPWOURC-UHFFFAOYSA-N 0.000 description 2
- ALRHLSYJTWAHJZ-UHFFFAOYSA-N 3-hydroxypropionic acid Chemical compound OCCC(O)=O ALRHLSYJTWAHJZ-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- 230000035508 accumulation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 238000007605 air drying Methods 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000003851 corona treatment Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 125000005456 glyceride group Chemical group 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- ATNNLHXCRAAGJS-QZQOTICOSA-N (e)-docos-2-enoic acid Chemical compound CCCCCCCCCCCCCCCCCCC\C=C\C(O)=O ATNNLHXCRAAGJS-QZQOTICOSA-N 0.000 description 1
- KIHBGTRZFAVZRV-UHFFFAOYSA-N 2-Hydroxyoctadecanoic acid Natural products CCCCCCCCCCCCCCCCC(O)C(O)=O KIHBGTRZFAVZRV-UHFFFAOYSA-N 0.000 description 1
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 1
- LXKCZUOSRQSRHW-UHFFFAOYSA-N 6-hydroxyoctadecanoic acid Chemical compound CCCCCCCCCCCCC(O)CCCCC(O)=O LXKCZUOSRQSRHW-UHFFFAOYSA-N 0.000 description 1
- 235000021357 Behenic acid Nutrition 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- DPUOLQHDNGRHBS-UHFFFAOYSA-N Brassidinsaeure Natural products CCCCCCCCC=CCCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229920001634 Copolyester Polymers 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- HSRJKNPTNIJEKV-UHFFFAOYSA-N Guaifenesin Chemical compound COC1=CC=CC=C1OCC(O)CO HSRJKNPTNIJEKV-UHFFFAOYSA-N 0.000 description 1
- TUNFSRHWOTWDNC-UHFFFAOYSA-N Myristic acid Natural products CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- NXFXCIKDVUEPLP-UHFFFAOYSA-N OCC(O)CO.C(CS)(=O)OCCOC(CS)=O Chemical compound OCC(O)CO.C(CS)(=O)OCCOC(CS)=O NXFXCIKDVUEPLP-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 229940116226 behenic acid Drugs 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 150000002148 esters Chemical group 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- XMHIUKTWLZUKEX-UHFFFAOYSA-N hexacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O XMHIUKTWLZUKEX-UHFFFAOYSA-N 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- ZWLPBLYKEWSWPD-UHFFFAOYSA-N o-toluic acid Chemical compound CC1=CC=CC=C1C(O)=O ZWLPBLYKEWSWPD-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical group CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002961 polybutylene succinate Polymers 0.000 description 1
- 239000004631 polybutylene succinate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920005629 polypropylene homopolymer Polymers 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- LKOVPWSSZFDYPG-WUKNDPDISA-N trans-octadec-2-enoic acid Chemical compound CCCCCCCCCCCCCCC\C=C\C(O)=O LKOVPWSSZFDYPG-WUKNDPDISA-N 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
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/007—Addition polymers
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Textile Engineering (AREA)
- Dermatology (AREA)
- Nonwoven Fabrics (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The invention provides the topsheet of the absorbent commodity being suitable for using in hygienic material, back sheet, side collection unit etc. and the nonwoven fabric that the DIMENSIONAL STABILITY of width is high, flexibility is excellent and processability is also good.The feature of nonwoven fabric of the present invention is, it is formed by thermoplastic fibre, and the fiber-wall-element model in this nonwoven fabric counts more than 1.05 with the MOR value of degree of molecular orientation and less than 2.0, and 3% of this nonwoven fabric stress when extending is more than 2N/5cm and below 10N/5cm.
Description
Technical field
The present invention relates to the nonwoven fabric formed by thermoplastic fibre.More specifically, this relates to the topsheet (top sheet), back sheet (backsheet), side collection unit etc. of the absorbent commodity being suitable for using in hygienic material and the nonwoven fabric formed by thermoplastic fibre that the DIMENSIONAL STABILITY of width is high, flexibility is excellent and processability is also good.
Background technology
In recent years, the universal of disposable diaper is significant, and its output is also increased sharply gradually.As the disposable diaper under this environment, the stability reducing loss on its production line and quality is important.In diaper line, when size as the width of raw-material nonwoven fabric changes, cause the generation of fold/complications movement, with film adhered operation, can produce and apply with the skew of film, hot solvent that coating width in operation is not enough, inter process hot solvent is attached to the various unfavorable conditions such as each roller.Especially along with the expansion of output, be strongly required high speedization, work in equipment always, for use material, also not only need the intensity that can tolerate high-speed production line, and need to tolerate frequent occur low ~ higher speed gear time the few material of the change in size of change.
As the means of the change in size of the width of suppression nonwoven fabric, improve the bonding level of the fiber of nonwoven fabric by the method etc. of the method for raising heat bonding temperature, the method improving cohesive pressure, raising embossing area occupation ratio thus suppress change in size, but use wherein any means all can improve bonding level, thus make the quality of nonwoven fabric hardening.That is, rely on the means of the change in size of the width of existing suppression nonwoven fabric, for for hygienic material, flexibility is poor, and the change in size of the flexibility and width of taking into account nonwoven fabric is very difficult.
Summary of the invention
the problem that invention will solve
The present invention wishes that the problem solved is to provide the topsheet, back sheet, side collection unit etc. of the absorbent commodity being suitable for using in hygienic material and the nonwoven fabric formed by thermoplastic fibre that the DIMENSIONAL STABILITY of width is high, flexibility is excellent and processability is also good.
for the scheme of dealing with problems
The present inventor etc. repeatedly conduct in-depth research to solve foregoing problems and test, found that, stress when being extended by the index of the fiber-wall-element model degree by the nonwoven fabric formed by thermoplastic fibre and the MOR value of degree of molecular orientation and nonwoven fabric low while extending (3% stress) is set as particular range, the arrangement of the fiber forming nonwoven fabric is set to the flow direction of production line, thus the change in size of the width caused by the tension force applied when batching is little, the production process of nonwoven fabric, complications in hygienic material manufacturing procedure move, fold produces few, make operation stabilisation, thus complete the present invention.
Usually, relative to diaper overall width, the tension force applied sheet material in usual hygienic material production line is 1 ~ 6kg, and according to velocity variations, the faster then tension force of speed is larger, infers and is on average about about 2kg/30cm.Therefore, no matter how strong ultimate strength has, as long as be easily out of shape because of the tension force applied on a production line, just can be described as speed dependence high, if even if low ultimate strength is also not easily out of shape because of production line tension force, then can be described as excellent in stability of advancing.
The discoveries such as the present inventor, by the production process of nonwoven fabric fiber accumulations in mobile collection surface time production line flow direction collection distance (hereinafter referred to as longitudinal pattern length.) for producing nonwoven fabric under condition more than a certain distance, the MOR value of the degree of molecular orientation representing fiber-wall-element model is set as particular range, the fiber forming nonwoven fabric is set to the flow direction of production line, thus the change in size of the width caused by tension force when batching reduces.
And then, in order to improve the process stability in nonwoven production operation, hygienic material manufacturing procedure, the relation that complications move, fold produces in the movement of the nonwoven fabric under operation tension force iso-stress and operation is conducted in-depth research, found that, by control nonwoven fabric low extend time stress 3% elongation time stress, stability of advancing improve.
In nonwoven production operation, manufacturing procedure, according to using the advancing of multistage roller, the high speed of nonwoven fabric advances, and the operation tension force applied nonwoven fabric, roller peripheral speed change.Prevent that the complications of nonwoven fabric from moving to relax/absorbing this change, fold produces, stress when nonwoven fabric low is extended is low is desirable.3% of nonwoven fabric when the value of stress is large when extending, and nonwoven fabric is difficult to the change of following peripheral speed, becomes tortuous mobile, fold easily occurs to produce.In addition, when during 3% elongation, the value of stress is too small, due to operation tension force, nonwoven fabric stretches, instability of advancing.And then during by extending 3%, the value of stress controls little, can keep the flexibility being suitable for hygienic material.
That is, in the production line of hygienic material, by controlling the fiber-wall-element model of nonwoven fabric, the change in size of width in operation can be suppressed, and, stress when being extended by 3% of control nonwoven fabric, can follow/absorb the change of operation tension force, speed, reach the raising of stable advancing property.
That is, the present invention is as described below.
[1] a kind of nonwoven fabric, it is characterized in that, it is formed by thermoplastic fibre, and the fiber-wall-element model in this nonwoven fabric counts more than 1.05 with the MOR value of degree of molecular orientation and less than 2.0, and 3% of this nonwoven fabric stress when extending is more than 2N/5cm and below 10N/5cm.
[2] nonwoven fabric according to aforementioned [1], wherein, the longitudinal direction/transverse strength ratio of aforementioned nonwoven cloth is more than 1.5 and less than 10.
[3] nonwoven fabric according to aforementioned [1] or [2], wherein, the width dimensions of the width of aforementioned nonwoven cloth is changed to more than 0% and less than 10%.
[4] nonwoven fabric according to any one of aforementioned [1] ~ [3], wherein, aforementioned thermoplastic's fiber is polyolefin series fiber.
[5] nonwoven fabric according to aforementioned [4], wherein, aforementioned polyolefins series fiber is polypropylene-based fiber.
[6] nonwoven fabric according to any one of aforementioned [1] ~ [5], wherein, aforementioned nonwoven cloth is nonwoven fabric of long fibers.
[7] nonwoven fabric according to any one of aforementioned [1] ~ [6], wherein, the average single thread fiber number of aforementioned thermoplastic's fiber is more than 0.5dtex and below 3.5dtex.
[8] hygienic material, its nonwoven fabric according to any one of use aforementioned [1] ~ [7] is formed.
[9] hygienic material according to aforementioned [8], it is the form of disposable diaper, sanitary napkin or incontinence pad.
the effect of invention
Nonwoven fabric of the present invention is the nonwoven fabric formed by thermoplastic fibre, fiber-wall-element model is set to more than 1.05 in the MOR value of degree of molecular orientation and less than 2.0, and stress is set to more than 2N/5cm and below 10N/5cm when extending 3%, thus maintenance flexibility, width dimensions change is very little, and the processability of hygienic material is also very good.
Especially, in order to increase production capacity, need the high speed of the speed of production of nonwoven fabric, the speed of production of diaper, due to high speed, coiling tension is generally high-tension, and nonwoven fabric of the present invention due to the change in size of width low, therefore, nonwoven production yield is good, and in hygienic material production line, also can alleviate the skew with film in film adhered operation, can alleviate coating width deficiency, inter process hot solvent in hot solvent coating and be attached to the unfavorable conditions such as each roller.
Detailed description of the invention
Below describe the present invention.
As the thermoplastic fibre forming nonwoven fabric of the present invention, such as, can use the polyolefin series fibers such as polyethylene fiber, polypropylene fibre, Co-polypropylene; The polyester fibers such as pet fiber, polybutylene terephthalate (PBT) fiber, polyethylene naphthalate fiber, copolyester; The polyamide-based fibers such as nylon-6 fiber, nylon-66 fibre, copolymer nylon; The biological degradability fibers etc. such as PLA, poly butylene succinate, polyethylene glycol succinate.
Wherein, from the view point of quality, preferred polyolefm series fiber.Include, for example out the fiber formed by resins such as the copolymers of polyethylene, polypropylene, these monomers and other alpha-olefin.Wherein, when using not easy fracture and excellent in dimensional stability when producing hygienic material strong from intensity, preferably use polypropylene fibre.Polypropylene can be the polymer utilizing common Z-N (Ziegler-Natta) catalyst to synthesize, and also can be the polymer utilizing with metallocene the unit point active catalyst synthesis being representative.As other alpha-olefin, be the alkene of carbon number 3 ~ 10, specifically, propylene, 1-butylene, 1-amylene, 1-hexene, 4-methyl-1-pentene, 1-octene etc. can be listed.In addition, can be ethylene random Co-polypropylene, ethylene contents less than 2%, be preferably preferred less than 1%.They can be used alone one, also can be used in combination of two or more.Preferably, one is used alone.Or be that the core sheath fiber of superficial layer also can with polyolefin-based resins.In addition, its fiber shape can be not only common circular fiber, also can be the fiber of the specific form such as crimped fibre and profiled filament.From the view point of intensity/DIMENSIONAL STABILITY, be particularly preferably the fiber of principal component with homo-polypropylene.
In addition, in polyacrylic situation, as MFR, lower limit is more than 20g/10 minute, preferably greater than 30g/10 minute, more preferably above 40g/10 minute, further preferably greater than 53g/10 minute.The upper limit is less than 100g/10 minute, be preferably less than 85g/10 minute, be more preferably less than 70g/10 minute, further preferred less than 65g/10 minute.When MFR is within the scope of this, the good fluidity of resin, stress when can reduce by 3% elongation, the flexibility as nonwoven fabric is good, and stably can produce nonwoven fabric.MFR carries out measuring obtaining according to the table 1 of JIS-K7210 " melt mass flow rate (MFR) of plastics-thermoplastic and the test method of melt volume-flow rate (MVR) ", test temperature 230 DEG C, test load 2.16kg.
Forming can also according to the compounding nucleator of object, fire retardant, inorganic filler, pigment, colouring agent, heat-resisting stabilizing agent, antistatic additive etc. in the thermoplastic fibre of nonwoven fabric of the present invention.
As engagement means thermoplastic fibre engaged when manufacturing nonwoven fabric, part hot pressing connection, hot blast method can be listed, utilize the joint of molten component (hot solvent) method, other various method, from the view point of intensity, preferred part hot pressing connection.
The thermo-compressed area occupation ratio of the part thermo-compressed of nonwoven fabric of the present invention keeps and flexibility from the view point of intensity, be more than 3% and less than 40%, preferably more than 4% and less than 25%, be more preferably more than 4% and less than 20%, more preferably more than 5% and less than 15% most preferably be less than 7%.
In addition, part thermo-compressed of the present invention process can be undertaken by supercritical ultrasonics technology or make fiber web (web) to carry out through between heating dandy roll, it is made to show back of the body integration thus, such as, the relief pattern such as tip-like, ellipse, rhombus, rectangle, oblique broken some shape intersperses among whole of nonwoven fabric.From the view point of productivity ratio, preferably use heating dandy roll.
The average single thread fiber number forming the thermoplastic fibre of nonwoven fabric of the present invention is preferably more than 0.5dtex and below 3.5dtex, be more preferably more than 0.7dtex and below 3.2dtex, more preferably more than 0.9dtex and below 2.8dtex, most preferably be below 2.5dtex.From the view point of stability of spinning process, be preferably more than 0.5dtex, fiber number is thinner, and the adhesive spots making silk during nonwoven fabric is more, and therefore intensity is high, and flexibility is good.Because it is mainly used in hygienic material, therefore, from the view point of nonwoven fabric intensity, below 3.5dtex is preferably.
The weight per unit area of nonwoven fabric of the present invention is 8g/m
2above and 40g/m
2below, 10g/m is preferably
2above and 30g/m
2below, 10g/m is more preferably
2above and 25g/m
2below, more preferably 10g/m
2above and less than 23g/m
2, and most preferably less than 20g/m
2.The weight per unit area of nonwoven fabric is less, and flexibility is better, can be used as hygienic material aptly, and be 8g/m
2time above, meeting the demand for the intensity needed for the nonwoven fabric of hygienic material, on the other hand, is 40g/m
2time following, meet the flexibility of the nonwoven fabric for hygienic material, stay to people in appearance and seem thicker impression.
The index of the fiber-wall-element model of nonwoven fabric of the present invention and the MOR value of degree of molecular orientation need to be more than 1.05 and less than 2.0, be preferably more than 1.1 and less than 2.0, be more preferably more than 1.15 and less than 1.7, more preferably more than 1.2 and less than 1.7.When MOR value is more than 1.05, fiber-wall-element model becomes the flow direction of production line, and the change in size of width is very little, and the fitness of process of hygienic article is good.In addition, when MOR value is less than 2.0, for transverse strength can be obtained fully during hygienic material.
3% of nonwoven fabric of the present invention stress when extending needs for more than 2N/5cm and below 10N/5cm, be preferably more than 2N/5cm and below 8N/5cm, be more preferably more than 2.5N/5cm and below 7.5N/5cm.When during 3% elongation, stress is below 10N/5cm, as the nonwoven fabric for hygienic material, flexibility is good, in addition, during for more than 2N/5cm, stably can produce nonwoven fabric.
Longitudinal direction/transverse strength the ratio of nonwoven fabric of the present invention be more than 1.5 and less than 10, be preferably more than 2.0 and less than 10, be more preferably more than 2.5 and less than 8.5, more preferably more than 3.0 and less than 8.5.When longitudinal direction/transverse strength ratio is more than 1.5, the change in size of width is very little, and the processability (or fitness of process) of hygienic material is good, and from the view point of the intensity of the nonwoven fabric for hygienic material, longitudinal direction/transverse strength is than being preferably less than 10.Longitudinal direction/transverse strength is than time excessive, and hygienic material adds man-hour coiling tension and concentrates on the low position of the stress of nonwoven fabric, thus sometimes ruptures.
As the intensity of nonwoven fabric of the present invention, add the fracture in man-hour from the view point of hygienic material, need the intensity of minimum.Longitudinal fracture intensity is preferably more than 10N/5cm and below 100N/5cm, be more preferably more than 10N/5cm and below 85N/5cm, more preferably more than 12N/5cm and below 70N/5cm.Cross-breaking strength is preferably more than 1.2N/5cm and below 50N/5cm, be more preferably more than 1.5N/5cm and below 40N/5cm, more preferably more than 1.8N/5cm and below 30N/5cm.When fracture strength is within the scope of this, can processes well and fracture in man-hour can not be added at hygienic material.
The fiber alignment of nonwoven fabric of the present invention by by time stacked for fiber web (web), the distance of the flow direction of the production line of the fibroreticulate landing place of fiber accumulations when the mobile collection surface and longitudinal pattern length be set to more than 50mm and obtain, be preferably more than 60mm and below 400mm, be more preferably more than 75mm and below 300mm.When longitudinal pattern length is more than 50mm, the change in size of width is little, and fitness of process is good, during for below 400mm, can be kept for the intensity of hygienic material.
The change in size of width of the present invention be preferably more than 0% and less than 10%, be more preferably more than 0.1% and less than 9%, more preferably more than 0.5% and less than 8%.When the change in size of width is less than 10%, in the production line of hygienic material, the generation of fold is suppressed, in order to Absorbable organic halogens process, be preferably more than 0%.
Hydrophilizing agent can also be applied in nonwoven fabric of the present invention.As described hydrophilizing agent, consider the security etc. in the security to human body, operation, preferably use separately or as a mixture the anion system such as nonionic system activating agent, alkylphosphonic, the alkyl sulfate activating agent etc. that the addition of ethylene oxide such as higher alcohol, higher fatty acids, alkyl phenol are obtained.
The applied amount of hydrophilizing agent is different according to required performance, usually be preferably more than 0.1 % by weight relative to fiber and the scope of less than 1.0 % by weight, be more preferably more than 0.15 % by weight and less than 0.8 % by weight, more preferably more than 0.2 % by weight and less than 0.6 % by weight.When applied amount is within the scope of this, meet the hydrophilicity as the topsheet of hygienic material, processability is also good.
As the method for coating hydrophilizing agent, usually, the hydrophilizing agent diluted can be used, adopt the method that infusion process, spray-on process, coating (roller licks coating, intaglio plate coating) method etc. are existing, be coated with after preferably the hydrophilizing agent water equal solvent be pre-mixed as required being diluted.
When being coated with after being diluted by hydrophilizing agent water equal solvent, sometimes need drying process.As drying means now, the known method utilizing convection heat transfer' heat-transfer by convection, conduction heat transfer, radiant heat transfer etc. can be adopted, the drying means etc. that can use hot blast, utilize ultrared drying, utilize thermo-contact.
Softening agent can also be applied in nonwoven fabric of the present invention.As described softening agent, preferred ester compounds, more preferably, can list the polyalcohol of 3 ~ 6 yuan and the ester compounds of monocarboxylic acid.
As the polyalcohol of 3 ~ 6 yuan, include, for example out the polyalcohol of glycerine, trimethylolpropane etc. 3 yuan; The polyalcohol of pentaerythrite, glucose, sorbitan, two glycerine, ethylene glycol bisthioglycolate glycerin ether etc. 4 yuan; The polyalcohol of triglycerin, trimethylolpropane two glycerin ether etc. 5 yuan; The polyalcohol etc. of D-sorbite, four glycerine, dipentaerythritol etc. 6 yuan.
As monocarboxylic acid, include, for example out sad, the monocarboxylic acid such as dodecylic acid, tetradecanoic acid, octadecanoid acid, behenic acid, hexacosoic acid, octadecenoic acid, docosenoic acid, isostearic acid; The ester ring type monocarboxylic acids such as thiacyclohexane carboxylic acid; The aromatic monocarboxylates such as benzoic acid, methylbenzene carboxylic acid; The hydroxyl group aliphatic monocarboxylic acids such as hydracrylic acid, hydroxyoctadecanoic acid, kamalolenic acid; The sulfur-bearing aliphatic monocarboxylic acids etc. such as alkylthio propionic acid.
Ester compounds is non-essential is single component, also can be two or more mixtures, also can for being derived from the grease class of natural goods.Wherein, the ester compounds comprising unrighted acid is easily oxidized, the easy oxidative degradation when spinning, therefore, and preferably saturated aliphatic monocarboxylic acid or aromatic monocarboxylate.About the grease class being derived from natural goods, due to tasteless compared with feedstock oil and stable, therefore preferably use the ester compounds of hydrogenation.
As ester compounds, the molecular weight of preferred monocarboxylic acid is comparatively large and lipophile is high.Because lipophile is high, ester compounds enters the amorphous portion of thermoplastic fibre, hinders crystallization, and non-crystalline areas increases, and therefore bending pliability becomes less.
In order to obtain described effect, the fusing point of ester compounds is preferably more than 70 DEG C, is more preferably more than 80 DEG C and less than 150 DEG C.The fusing point of ester compounds is wide and when having scope, this fusing point means average fusing point.In addition, all right other composition compounding in ester compounds, such as, the ester compounds of fusing point less than 70 DEG C, other organic compound.
As the containing ratio of the ester compounds of softening agent relative to thermoplastic fibre, be preferably more than 0.3 % by weight and less than 5.0 % by weight.About ester compounds, even if add on a small quantity, bending pliability, slip easness also significantly improve, even if increase content, also do not observe the raising of the performance conformed to content.Therefore, consider spinnability and smokiness, be preferably less than 5.0 % by weight, be more preferably more than 0.5 % by weight and less than 3.5 % by weight, more preferably more than 0.5 % by weight and less than 2.0 % by weight.
Be not particularly limited the manufacture method of nonwoven fabric of the present invention, owing to being mainly used in hygienic material, therefore, from the view point of intensity, preferred spunbonded (S) method, by being laminated into SS, SSS, SSSS, dispersion improves, so be more preferably.In addition, according to object, also can by spunbond (S) fiber and melt-blown (M) fibre lay-up, can for being laminated into the structure of SM, SMS, SMMS, SMSMS.
In addition, the traction method of nonwoven fabric of the present invention is not particularly limited, in order to obtain that MOR value is high and width dimensions changes little nonwoven fabric, the method using the high velocity air draw-gear sprayed based on air is good, uses the draw-gear of rectangle type better.
Form the spinning temperature of the thermoplastic fibre of nonwoven fabric of the present invention more than 30 DEG C and less than 100 DEG C higher than the fusing point of thermoplastic resin, preferably high more than 40 DEG C and less than 95 DEG C, more preferably high more than 45 DEG C and less than 70 DEG C, further preferably high more than 50 DEG C and less than 65 DEG C.When combinations of thermoplastic resins is two or more, use the fusing point becoming the thermoplastic resin of principal component.
Such as, when thermoplastic resin is acrylic resin, be more than 190 DEG C and less than 260 DEG C, be preferably more than 200 DEG C and less than 255 DEG C, be more preferably more than 205 DEG C and more than less than 230 DEG C, more preferably 210 DEG C and less than 225 DEG C.When spinning temperature is below 260 DEG C, the contamination on the spinning head surface of being caused by resin decomposition thing is few, and then the generation of the broken string that can suppress to be reduced by the viscosity of resin and cause.In addition, during spinning temperature height, the nonwoven fabric of making owing to being subject to the impact of resin decomposition thing, therefore, intensity reduce, with it concomitantly 3% extend time stress also reduce, demonstrate the tendency adding and easily rupture man-hour.When spinning temperature is more than 190 DEG C, can suppress to be increased by the viscosity of resin and the generation of the broken string caused, and then the resin leakage etc. that can suppress to be increased by pressure in spinning head during spinning and cause.
Nonwoven fabric of the present invention can be long fiber according to object, can be also staple fibre, be not particularly limited, owing to being mainly used in hygienic material, therefore from the view point of intensity, and preferred nonwoven fabric of long fibers.
Nonwoven fabric of the present invention due to the change in size of width considerably less, therefore the manufacture of hygienic material can be suitably used for, as hygienic material, disposable diaper, sanitary napkin or incontinence pad can be listed, go for the topsheet on their surface, the back sheet in outside, the side collection unit etc. of bottom periphery.
In addition, the purposes of nonwoven fabric of the present invention is not limited to aforementioned applications, such as, can also be used for facial mask, hand warmer, adhesive tape base cloth, flashing base cloth, outer subsides medicine base cloth, first-aid dressing base cloth, packaging material, Wiping articles, medical gown, bandage, dress material, skin nursing thin slice etc.
Embodiment
Below, illustrate the present invention by embodiment and comparative example, but the present invention is not only limited to following embodiment.
It should be noted that, the evaluation method of the various characteristics used in embodiment and comparative example is as described below, and the physical property obtained is shown in following table 1.
1. average single thread fiber number (dtex)
The two ends 10cm of the nonwoven fabric that removing manufactures, about 5 deciles, take the test film that 1cm is square in the direction of the width, respectively measured to the diameter of fiber at each 20, calculate average single thread fiber number by its mean value with microscope.
2. weight per unit area (g/m
2)
According to JIS-L1906, the test film choosing arbitrarily 5 longitudinal 20cm × horizontal 5cm, quality measurement, is scaled the weight of per unit area, thus obtains by its mean value.
3. stress (N/5cm) when longitudinal direction/transverse strength ratio and 3% extends
According to the two ends 10cm of the cloth sample of JIS L-1906, removing nonwoven fabric, cut the sample of 5 width 5cm, length 20cm in the mode of width equalization, measure under the clamping condition of interval 10cm, draw speed 30cm/ minute with cupping machine.Measure longitudinally/laterally sample of each 5, measured value is averaged, calculates longitudinal fracture strength and horizontal fracture strength.During 3% elongation, stress is averaged calculates longitudinally/horizontal measured value.Longitudinal direction/transverse strength ratio is calculated by following formula.
The fracture strength (N/5cm) of fracture strength (the N/5cm)/transverse direction of longitudinal direction/transverse strength ratio=longitudinal direction
4. degree of molecular orientation (MOR value)
Use molecularly oriented meter (prince measures machine Co., Ltd. system) MOA-6004, sample is applied to the microwave of polarization, by the dipole-dipole interaction with fiber molecule, detect the main shaft orientation of its molecule, pass through spinning sample, obtain anisotropy (orientation), obtain TD and MD direction through micro-intensity of wave.Obtain: through the Max/Min value=MOR value of microwave intensity.The arrangement of this MOR value and the fiber in fiber web, than relevant, represent isotropism when value is 1, represents that fiber arranges with specific direction when being more than 1, and the degree being worth its arrangement of larger expression is stronger.But, because it is based on the mensuration through intensity, therefore do not represent the absolute value of orientation.
5. the change in size of width
The cloth sample of nonwoven fabric is cut into width 30cm × length 1m, is fixed by one end two-sided tape of sample, the other end attaches fixture (weight 231.5g) with imposed load.The position ring of the distance two-sided tape of sample 80cm is in the longitudinal direction around on chrome faced free roll (φ 80), arranges in the mode of imposed load downwards, the counterweight of catenary weight 2kg.The width of the distance two-sided tape measuring sample for the 30 seconds afterwards position of 50cm in the longitudinal direction, calculates the change in size of width by following formula.
Change in size (%)=[load arrange before width (mm)-2kg load arrange after width (mm)]/load arrange before width (mm) × 100
6. the contracting width processability (fitness of process) caused by coiling tension
Be the nonwoven fabric sample of 1m by reeling width under the condition of the known common method for coiling on-line velocity 200m/min of those skilled in the art, tension force 7kg/m, evaluate the generation degree of fold according to following metewand:
◎: fold does not produce
Zero: line direction produces concavo-convex fold
×: line direction produces folding fold or fracture
[embodiment 1]
Be that the acrylic resin of 60g/10 minute (according to JIS-K7210, measuring under temperature 230 DEG C, load 2.16kg) is extruded under the condition of nozzle diameter φ 0.4mm, single hole spray volume 0.56g/minHole, spinning temperature 215 DEG C by spun-bond process by MFR, the high velocity air draw-gear sprayed based on air is used to draw to this long filament group, the mode being 110mm with longitudinal pattern length is extruded towards mobile collection surface, prepares the long fiber fiber web of average single thread fiber number 1.5dtex.
Then, make the fiber web obtained through straight roll and dandy roll (pattern specification: diameter 0.425mm is circular, be staggered, horizontal spacing 2.1mm, vertical clearance 1.1mm, compression joint area rate 6.3%) between, at temperature 135 DEG C and linear load 35kgf/cm, fiber is bonded to each other, obtains weight per unit area 17g/m
2nonwoven fabric of long fibers.
[embodiment 2]
Single hole spray volume is set to 0.90g/minHole, longitudinal pattern length is set to 250mm, operate similarly to Example 1, obtain average single thread fiber number 2.0dtex, weight per unit area 11g/m
2nonwoven fabric of long fibers.
[embodiment 3]
Longitudinal pattern length is set to 75mm, operates similarly to Example 1, obtain average single thread fiber number 1.1dtex, weight per unit area 25g/m
2nonwoven fabric of long fibers.
[embodiment 4]
Longitudinal pattern length is set to 150mm, use the ethylene/propylene olefinic random copolymer that ethene composition containing ratio is 4.3 % by mole, MFR is 24g/10 minute (according to JIS-K7210, measuring under temperature 230 DEG C, load 2.16kg), thermo-compressed temperature is set to 120 DEG C, in addition, operate similarly to Example 1, obtain average single thread fiber number 1.1dtex, weight per unit area 15g/m
2nonwoven fabric of long fibers.
[embodiment 5]
Longitudinal pattern length is set to 150mm, take MFR as the linear low density polyethylene of 17g/10 minute (according to JIS-K7210, measuring under temperature 190 DEG C, load 2.16kg) be sheath composition, take MFR as the polypropylene of 60g/10 minute (according to JIS-K7210, measuring under temperature 230 DEG C, load 2.16kg) be core composition, thermo-compressed temperature is set to 132 DEG C, in addition, operate similarly to Example 2, obtain average single thread fiber number 2.0dtex, weight per unit area 19g/m
2nonwoven fabric of long fibers.
[embodiment 6]
Be that the acrylic resin of 60g/10 minute (according to JIS-K7210, measuring under temperature 230 DEG C, load 2.16kg) by spun-bond process, extrude under the condition of nozzle diameter φ 0.48mm, single hole spray volume 0.33g/minHole, spinning temperature 230 DEG C by MFR, this long filament group is drawn by cold wind pushing mode, the mode being 70mm with longitudinal pattern length is extruded towards mobile collection surface, prepares the long fiber fiber web of average single thread fiber number 1.1dtex.
Then, similarly to Example 1 fiber is bonded to each other, obtains weight per unit area 15g/m
2nonwoven fabric of long fibers.
[embodiment 7]
Single hole spray volume is set to 0.66g/minHole, longitudinal pattern length is set to 60mm, operate similarly to Example 6, prepare the long fiber fiber web of average single thread fiber number 2.2dtex.
Then, make the fiber web that obtains through between straight roll and dandy roll (pattern specification: oblique broken some decorative pattern, compression joint area rate 14%), under linear load 35kgf/cm, fiber is bonded to each other temperature 135 DEG C, obtains weight per unit area 17g/m
2nonwoven fabric of long fibers.
[embodiment 8]
Longitudinal pattern length is set to 110mm, operates similarly to Example 2, obtain average single thread fiber number 2.5dtex, weight per unit area 15g/m
2nonwoven fabric of long fibers.Make the nonwoven fabric obtained under the atmosphere of room temperature 22 DEG C, at discharge capacity 40Wmin/m
2(electric discharge degree 4.0W/cm
2) condition under by Corona discharge Treatment machine, obtain the nonwoven fabric of wetting tension 39mN/m.
By spray-on process, the nonwoven fabric that obtains is applied to the hydrophilizing agent of polyethers system, then heated-air drying 5 minutes at 80 DEG C, obtains the nonwoven fabric of long fibers that hydrophilizing agent concentration adhesion amount is 0.3 % by weight.
[embodiment 9]
Longitudinal pattern length is set to 110mm, operates similarly to Example 8, obtain average single thread fiber number 2.8dtex, weight per unit area 18g/m
2hydrophilizing agent concentration adhesion amount be 0.5 % by weight nonwoven fabric of long fibers.
[embodiment 10]
Longitudinal pattern length is set to 60mm, operates similarly to Example 7, prepare the long fiber fiber web of average single thread fiber number 2.5dtex.
Then, similarly to Example 6 fiber is bonded to each other, obtains weight per unit area 17g/m
2nonwoven fabric of long fibers.Make the nonwoven fabric obtained under the atmosphere of room temperature 22 DEG C, at discharge capacity 40Wmin/m
2(electric discharge degree 4.0W/cm
2) condition under by Corona discharge Treatment machine, obtain the nonwoven fabric of wetting tension 39mN/m.Lick by roller rubbing method to apply polyethers system hydrophilizing agent to the nonwoven fabric that obtains, then heated-air drying 5 minutes at 80 DEG C, obtains the nonwoven fabric of long fibers that hydrophilizing agent concentration adhesion amount is 0.3 % by weight.
[embodiment 11]
The fusing point mixing 1.25 % by weight is the glyceride (hydrogenation animal and plant fat) of the octadecanoid acid of 86 ~ 90 DEG C (average fusing points 88 DEG C), longitudinal pattern length is set to 110mm, operate similarly to Example 1, obtain average single thread fiber number 1.2dtex, weight per unit area 17g/m
2nonwoven fabric of long fibers.
[embodiment 12]
Mix the glyceride (hydrogenation animal and plant fat) of the octadecanoid acid of 3.50 % by weight, longitudinal pattern length is set to 110mm, operates similarly to Example 2, prepare the long fiber fiber web of average single thread fiber number 2.0dtex.
Then, make the fiber web that obtains through between straight roll and dandy roll (pattern specification: oblique broken some decorative pattern, compression joint area rate 14%), under linear load 35kgf/cm, fiber is bonded to each other temperature 135 DEG C, obtains weight per unit area 15g/m
2nonwoven fabric of long fibers.
[embodiment 13]
By conventional pet resin by spun-bond process, extrude under the condition of single hole spray volume 0.9g/minHole, spinning temperature 300 DEG C, the high velocity air draw-gear sprayed based on air is used to draw to this long filament group, the mode being 250mm with longitudinal pattern length is extruded towards mobile collection surface, prepares the long fiber fiber web of average single thread fiber number 2.0dtex.
Then, make the fiber web obtained through straight roll and dandy roll (pattern specification: knit eye pattern, horizontal spacing 2.0mm, vertical clearance 2.0mm, compression joint area 14.4%) between, under linear load 35kgf/cm, fiber is bonded to each other temperature 235 DEG C, obtains weight per unit area 12g/m
2nonwoven fabric of long fibers.
[comparative example 1]
Single hole spray volume is set to 0.22g/minHole, longitudinal pattern length is set to 110mm, operate similarly to Example 1, obtain the long fiber fiber web of average single thread fiber number 1.1dtex.Then, make the fiber web obtained through straight roll and dandy roll (pattern specification: diameter 0.425mm is circular, be staggered, horizontal spacing 2.1mm, vertical clearance 1.1mm, compression joint area rate 6.3%) between, under linear load 15kgf/cm, fiber is bonded to each other temperature 125 DEG C, obtains weight per unit area 17g/m
2nonwoven fabric of long fibers.
[comparative example 2]
Single hole spray volume is set to 0.40g/minHole, longitudinal pattern length is set to 30mm, operate similarly to Example 1, obtain average single thread fiber number 2.0dtex, weight per unit area 20g/m
2nonwoven fabric of long fibers.
[comparative example 3]
Longitudinal pattern length is set to 110mm, operates similarly to Example 1, obtain the long fiber fiber web of average single thread fiber number 1.1dtex.
Make the fiber web obtained through straight roll and dandy roll (pattern specification: knit eye pattern, horizontal spacing 2.0mm, vertical clearance 2.0mm, compression joint area 14.4%) between, temperature is set to 148 DEG C and linear load is set to 50kgf/cm, obtains weight per unit area 17g/m
2nonwoven fabric of long fibers.
[comparative example 4]
Longitudinal pattern length is set to 500mm, operates similarly to Example 2, obtain average single thread fiber number 2.8dtex, weight per unit area 11g/m
2nonwoven fabric of long fibers.
[table 1]
utilizability in industry
The nonwoven fabric formed by thermoplastic fibre of the present invention, because the DIMENSIONAL STABILITY of width is good, flexibility is excellent and processability is also good, therefore can be suitably used for the topsheet of hygienic material, back sheet, side collection unit etc.
Claims (9)
1. a nonwoven fabric, is characterized in that, it is formed by thermoplastic fibre, and the fiber-wall-element model in this nonwoven fabric counts more than 1.05 with the MOR value of degree of molecular orientation and less than 2.0, and 3% of this nonwoven fabric stress when extending is more than 2N/5cm and below 10N/5cm.
2. nonwoven fabric according to claim 1, wherein, the longitudinal direction/transverse strength ratio of described nonwoven fabric is more than 1.5 and less than 10.
3. nonwoven fabric according to claim 1 and 2, wherein, the width dimensions of the width of described nonwoven fabric is changed to more than 0% and less than 10%.
4. nonwoven fabric according to claim 1 and 2, wherein, described thermoplastic fibre is polyolefin series fiber.
5. nonwoven fabric according to claim 4, wherein, described polyolefin series fiber is polypropylene-based fiber.
6. nonwoven fabric according to claim 1 and 2, wherein, described nonwoven fabric is nonwoven fabric of long fibers.
7. nonwoven fabric according to claim 1 and 2, wherein, the average single thread fiber number of described thermoplastic fibre is more than 0.5dtex and below 3.5dtex.
8. a hygienic material, it uses the nonwoven fabric according to any one of claim 1 ~ 7 to be formed.
9. hygienic material according to claim 8, it is the form of disposable diaper, sanitary napkin or incontinence pad.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011084557 | 2011-04-06 | ||
| JP2011-084557 | 2011-04-06 | ||
| PCT/JP2011/075210 WO2012137379A1 (en) | 2011-04-06 | 2011-11-01 | Thermoplastic non-woven fabric |
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| Publication Number | Publication Date |
|---|---|
| CN103459694A CN103459694A (en) | 2013-12-18 |
| CN103459694B true CN103459694B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180069807.5A Active CN103459694B (en) | 2011-04-06 | 2011-11-01 | thermoplastic non-woven fabric |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5731948B2 (en) |
| CN (1) | CN103459694B (en) |
| MY (1) | MY187420A (en) |
| WO (1) | WO2012137379A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6342481B2 (en) * | 2014-04-15 | 2018-06-13 | ユニ・チャーム株式会社 | Absorbent articles |
| JP6976698B2 (en) * | 2017-03-14 | 2021-12-08 | 旭化成株式会社 | Long-fiber non-woven fabric for body warmers and disposable body warmers using this |
| JP2019085661A (en) * | 2017-11-02 | 2019-06-06 | 旭化成株式会社 | Conjugate filament nonwoven fabric |
| JP7324014B2 (en) * | 2019-02-28 | 2023-08-09 | 日本製紙クレシア株式会社 | Composite type nonwoven fabric and its manufacturing method |
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- 2011-10-31 JP JP2011239384A patent/JP5731948B2/en active Active
- 2011-11-01 MY MYPI2013701793A patent/MY187420A/en unknown
- 2011-11-01 CN CN201180069807.5A patent/CN103459694B/en active Active
- 2011-11-01 WO PCT/JP2011/075210 patent/WO2012137379A1/en active Application Filing
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| CN1044685A (en) * | 1989-01-30 | 1990-08-15 | 日本石油化学株式会社 | Cross-laminated stretched non-woven fibre and manufacture method thereof |
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| WO2010110293A1 (en) * | 2009-03-25 | 2010-09-30 | 東レ株式会社 | Production method for filament non-woven fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103459694A (en) | 2013-12-18 |
| JP5731948B2 (en) | 2015-06-10 |
| MY187420A (en) | 2021-09-22 |
| JP2012021259A (en) | 2012-02-02 |
| WO2012137379A1 (en) | 2012-10-11 |
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