KR850000549A - Low Density Nonwoven Aramid Sheet and Manufacturing Method Thereof - Google Patents

Low Density Nonwoven Aramid Sheet and Manufacturing Method Thereof Download PDF

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KR850000549A
KR850000549A KR1019840003083A KR840003083A KR850000549A KR 850000549 A KR850000549 A KR 850000549A KR 1019840003083 A KR1019840003083 A KR 1019840003083A KR 840003083 A KR840003083 A KR 840003083A KR 850000549 A KR850000549 A KR 850000549A
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sheet
dense
sheet structure
pattern
area
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KR1019840003083A
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KR910005013B1 (en
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아더 노렌(외 1) 데니스
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도널드 에이. 호에스
이. 아이. 듀퐁 드 네모어 앤드 컴페니
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • D04H1/4342—Aromatic polyamides
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/26—Polyamides; Polyimides
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/24—Upholstered seats
    • 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
    • D04H1/50—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 treatment to produce shrinking, swelling, crimping or curling of fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/005—Mechanical treatment
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/04—Physical treatment, e.g. heating, irradiating
    • D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/02—Patterned paper

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Laminated Bodies (AREA)
  • Paper (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Artificial Filaments (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Fertilizers (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Medicinal Preparation (AREA)
  • Cosmetics (AREA)
  • Materials For Medical Uses (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

내용 없음.No content.

Description

저밀도 부직 아라미드 시이트 및 이의 제조방법Low Density Nonwoven Aramid Sheet and Manufacturing Method Thereof

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (22)

자체접착에 의해 한정된 팽창부분을 가지며, 보다 덜 죠밀한 내부를 둘러싸는 조밀하고 부드러운 피브리드 및 섬유 스킨상이 마주하여 두 표면층을 형성한 쳄버로 이루어진 팽창부분이 있는 조밀한 지역을 가지며, 드립 기공도 시험에서 적어도 약 10초가 소요되기에 충분한 낮은 기공도를 가지며, 30 내지 90중량%의 아라미드 피브리드와 70 내지 10중량%의 아라미드 단섬유와의 혼합물로 기본적으로 이루어진 저밀도 부직 시이트 구조물.It has a dense area defined by self-adhesion and has a dense area with inflated parts consisting of chambers that form two surface layers facing each other with a dense, soft fibrid and fibrous skin that encloses a less dense interior. A low density nonwoven sheet structure having a low porosity sufficient to take at least about 10 seconds for testing and consisting essentially of a mixture of 30 to 90 weight percent aramid fibrids and 70 to 10 weight percent aramid short fibers. 제1항에 있어서, 기본중량이 약 7oz/yd2이하이며, 태이버 마찰시험에서 내마모성이 적어도 1,000회인 시이트 구조물.The sheet structure of claim 1, having a basis weight of about 7 oz / yd 2 or less and at least 1,000 wear resistances in a fiber friction test. 제1항에 있어서, 조밀한 부분이 표면 결합성을 갖고 있어서 테이프 풀 시험에서 육안으로 시각조사하여도 재료의 손실이 없는 시이트 구조물.The sheet structure according to claim 1, wherein the dense portion has surface bonding so that no material loss occurs even when visually irradiated in a tape pull test. 제1항에 있어서, 조밀한 부분이 불연속적으로 팽창된 부분을 한정하며 단편의 선상 패턴으로 배열된 시이트 구조물.The sheet structure of claim 1, wherein the dense portions define discontinuously expanded portions and are arranged in a linear pattern of fragments. 제4항에 있어서, 불연속적으로 팽창된 부분이 약 0.1 내지 약 25㎠의 범위내에서 시이트의 표면적을 차지하는 시이트 구조물.The sheet structure of claim 4, wherein the discontinuously expanded portion occupies a surface area of the sheet in the range of about 0.1 to about 25 cm 2. 제5항에 있어서, 표면결합성이 풍부하여 테이프 풀 시험에서 재료의 손실량이 4㎎/㎠ 이하인 시이트 구조물.6. The sheet structure according to claim 5, wherein the sheet structure is rich in surface bonding properties and the loss of material in the tape pull test is 4 mg / cm 2 or less. 제1항에 있어서, 피브리드와 적어도 단섬유의 일부가 폴리(m―페닐렌 이소프탈아미드)로 이루어지는 시이트 구조물.The sheet structure of claim 1, wherein the fibrid and at least a portion of the short fibers are made of poly (m-phenylene isophthalamide). 제7항에 있어서, 시이트의 약 10 내지 30중량%가 폴리(p―페닐렌 테레프탈아미드)의 단섬유로 이루어지는 시이트 구조물.8. The sheet structure of claim 7, wherein about 10-30% by weight of the sheet consists of short fibers of poly (p-phenylene terephthalamide). 제7항에 있어서, 피브리드, 단섬유인 MPD―I 및 PPD―T의 중량비가 각각 60/20/20이며 PPD―T섬유는 펄프화된 시이트 구조물.The sheet structure according to claim 7, wherein the weight ratio of fibrid and short fibers, MPD-I and PPD-T, is 60/20/20, respectively, and the PPD-T fibers are pulped. 제1항에 있어서, 팽창된 부분의 내부에서 재료의 밀도는 보다 덜 조밀한 중앙부위에서 표면층으로 갈수록 증가하며 조밀한 스폰지상 세포부분이 증가하여 스킨상의 표면층에서 더욱 조밀하게 되는 시이트 구조물.2. The sheet structure of claim 1, wherein the density of the material inside the expanded portion increases from the less dense central portion to the surface layer and the dense sponge-like cell portion increases to become more dense at the surface layer on the skin. 제1항에 있어서, 팽창된 부분이 기구상 구조내에서 주로 조밀한 스킨상 표면층과 실제로 퍼브리드/섬유물질이 느슨한 내부로 이루어진 시이트 구조물.2. The sheet structure of claim 1, wherein the expanded portion consists mainly of a dense skin-like surface layer in the mechanical structure and an interior of substantially loose hybrid / fibrous material. 제11항에 있어서, 시이트가 조밀한 부분 안에서 함께 자체 접착된 퍼브리드 및 섬유의 분리시이트로부터 표면층을 만든 시이트 구조물.12. The sheet structure of claim 11, wherein the sheet is made of a surface layer from separate sheets of fibrids and fibers self-bonded together in a dense portion. 제12항에 있어서, 기본중량이 약 3oz/yd2인 시이트 구조물.The sheet structure of claim 12, wherein the basis weight is about 3 oz / yd 2 . 아라미드 재료의 습윤적층한 부드러운 시이트를 형성하고, 팽창이 불가능한 조밀한 지역의 패턴을 시이트에 각인(刻印)하여 지역간의 팽창 가능한 부분을 한정하며, 물에 젖은 패턴 시이트를 유전가열하여 물을 급속히 증발시켜 시이트에서 팽창된 부분이 생기게 하는 단계를 포함하여 아라미드 피브리드 및 아라미드 단섬유로 이루어진 팽창된 부직 시이트를 제조하는 개선된 방법에 있어서, 젖은 상태에서 적층한 시이트를 가열건조시켜 실제로 모든 물을 증발시키므로써 표면이 부드러운 건조 시이트를 제공하고 ; 팽창이 불가능한 조밀한 부분의 패턴을 열 및 압력으로 형성하여 적어도 건조 시이트 하나로 이루어진 팽창용 적층 시이트 구조물을 제조하고 팽창이 가능한 부분을 한정하는 적층 시이트 구조물 전체에 걸쳐 조밀한 지역에서 재료를 자체 접착시키고 ; 패턴 시이트 구조물을 물로 응력―굴곡 및 포화시키며 ; 응력처리된 젖은 시이트를 유전가열하여 물을 급속히 증발시키고 시이트의 표면을 파괴하지 않고도 패턴시이트의 팽창이 가능한 내부 부분을 팽창시키는 것을 특징으로 하는 부직 시이트의 제조방법.Forms a wet, laminating soft sheet of aramid material, imprints a dense, non-expandable pattern on the sheet to define the expandable area between regions, and rapidly evaporates water by dielectric heating of the wet pattern sheet. An improved method of producing an expanded nonwoven sheet consisting of aramid fibrids and short aramid fibers comprising the steps of forming an expanded portion in the sheet, the method comprising: evaporating virtually all the water by heating and drying the laminated sheet in the wet state. Thereby providing a dry sheet having a smooth surface; Forming a pattern of dense, non-expandable parts with heat and pressure to produce an inflated laminated sheet structure consisting of at least one dry sheet and self-bonding the material in a dense area throughout the laminated sheet structure defining the expandable part; ; Stress-bend and saturate the pattern sheet structure with water; A method for producing a nonwoven sheet, wherein the wet sheet is subjected to dielectric heating to rapidly evaporate water and expand the inner portion of the pattern sheet without breaking the surface of the sheet. 제14항에 있어서, 피브리드 및 적어도 단섬유의 일부가 폴리(m―페닐렌 이소프탈아미드)인 제조방법.The method of claim 14, wherein the fibrids and at least some of the short fibers are poly (m-phenylene isophthalamide). 제15항에 있어서, 조밀한 부분에 의해 한정된 팽창 가능한 부분이 불연속적이며 각각 약 0.1㎠의 면적을 차지하는 제조방법.16. The method of claim 15, wherein the expandable portion defined by the dense portion is discontinuous and occupies an area of about 0.1 cm 2 each. 제16항에 있어서, 조밀한 부분이 단편의 선상 패턴에 배열되며 시이트 표면의 약 50% 이하를 차지하는 제조방법.The method of claim 16, wherein the dense portions are arranged in a linear pattern of fragments and comprise less than about 50% of the sheet surface. 제14항에 있어서, 조밀한 지역을 초음파 장치로 형성하는 제조방법.The manufacturing method according to claim 14, wherein a dense area is formed by an ultrasonic device. 제14항에 있어서, 두께가 20mi1 이상인 건조시이트 1장을 사용하는 제조방법.The manufacturing method of Claim 14 using one dry sheet whose thickness is 20 mi1 or more. 제14항에 있어서, 적층 시이트 구조물이 두께가 적어도 약 4mil인 젖은 상태에서 적층한 건조시이트 두 장으로 이루어지는 제조방법.15. The method of claim 14, wherein the laminated sheet structure consists of two sheets of dry sheets laminated in a wet state having a thickness of at least about 4 mils. 제14항에 있어서, 건조시키는 동안 시이트 구조물에 응력을 가하는 제조방법.The method of claim 14, wherein the sheet structure is stressed during drying. 제14항에 있어서, 젖은 상태에 시이트 구조물에 응력을 가하는 제조방법.15. The method of claim 14 wherein the sheet structure is stressed in the wet state. ※ 참고사항:최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019840003083A 1983-06-02 1984-06-02 Low Density Nonwoven Aramid Sheet and Manufacturing Method Thereof KR910005013B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US50047383A 1983-06-02 1983-06-02
US500,473 1983-06-02
US500473 2000-02-09

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KR850000549A true KR850000549A (en) 1985-02-28
KR910005013B1 KR910005013B1 (en) 1991-07-20

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EP (1) EP0128712B1 (en)
JP (1) JPS59228059A (en)
KR (1) KR910005013B1 (en)
AT (1) ATE23378T1 (en)
AU (2) AU570468B2 (en)
BR (1) BR8402613A (en)
DE (1) DE3461206D1 (en)
DK (1) DK274084A (en)
GR (1) GR81644B (en)
IE (1) IE55469B1 (en)
MX (1) MX158635A (en)
NO (1) NO157943C (en)
PT (1) PT78680B (en)

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Publication number Priority date Publication date Assignee Title
FR2573969A1 (en) * 1984-12-03 1986-06-06 Quinette Internal Sa Covering sheet intended in particular to cover seats
US4750443A (en) * 1985-04-30 1988-06-14 E. I. Du Pont De Nemours And Company Fire-blocking textile fabric
DE59206760D1 (en) * 1991-01-22 1996-08-22 Hoechst Ag Nonwoven bonded with a melting binder
US5089088A (en) * 1991-02-28 1992-02-18 E. I. Du Pont De Nemours And Company Low-density, high strength aramid boards
AU5002293A (en) * 1992-08-17 1994-03-15 E.I. Du Pont De Nemours And Company Fire-resistant material comprising a fiberfill batt
WO2006009539A1 (en) * 2004-06-16 2006-01-26 E.I. Dupont De Nemours And Company Lightweight acoustic and thermal insulation fluff and systems made thereof
ES2783976T3 (en) * 2012-11-23 2020-09-21 Teijin Aramid Bv Electrical insulating paper

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Publication number Priority date Publication date Assignee Title
FR737923A (en) * 1931-09-23 1932-12-19 Paper handling process
NL246230A (en) * 1958-12-09
USRE30061E (en) * 1966-07-26 1979-07-31 Johnson & Johnson Nonwoven fibrous product and method of making the same
FR2052168A5 (en) * 1969-07-25 1971-04-09 Progil
AR231006A1 (en) * 1981-08-28 1984-08-31 Du Pont A COHERENT EXPANDED NON-WOVEN SHEET FREE OF ADHESIVE AND PARTICULARLY SUITABLE FOR THERMAL AND ACOUSTIC INSULATION
JPS58180650A (en) * 1982-04-19 1983-10-22 帝人株式会社 Aromatic polyamide nonwoven fabric

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AU2893084A (en) 1984-12-06
EP0128712A1 (en) 1984-12-19
DE3461206D1 (en) 1986-12-11
BR8402613A (en) 1985-04-30
AU583998B2 (en) 1989-05-11
JPS59228059A (en) 1984-12-21
EP0128712B1 (en) 1986-11-05
AU1012888A (en) 1988-04-28
AU570468B2 (en) 1988-03-17
DK274084D0 (en) 1984-06-01
PT78680B (en) 1986-07-11
IE841376L (en) 1984-12-02
PT78680A (en) 1985-01-01
NO157943C (en) 1988-06-15
IE55469B1 (en) 1990-09-26
NO157943B (en) 1988-03-07
MX158635A (en) 1989-02-20
GR81644B (en) 1984-12-11
ATE23378T1 (en) 1986-11-15
KR910005013B1 (en) 1991-07-20
DK274084A (en) 1985-01-23
NO842202L (en) 1984-12-03

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