GB630666A - Felts and methods of producing the same - Google Patents

Felts and methods of producing the same

Info

Publication number
GB630666A
GB630666A GB24983/44A GB2498344A GB630666A GB 630666 A GB630666 A GB 630666A GB 24983/44 A GB24983/44 A GB 24983/44A GB 2498344 A GB2498344 A GB 2498344A GB 630666 A GB630666 A GB 630666A
Authority
GB
United Kingdom
Prior art keywords
fibres
felt
adhesive
activated
activation
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.)
Expired
Application number
GB24983/44A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sylvania Industrial Corp
Original Assignee
Sylvania Industrial Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sylvania Industrial Corp filed Critical Sylvania Industrial Corp
Publication of GB630666A publication Critical patent/GB630666A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—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 by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0457—Specific fire retardant or heat resistant properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0464—Impregnants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0471—Surface coating material
    • B01D2239/0492—Surface coating material on fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/064—The fibres being mixed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/08—Special characteristics of binders
    • B01D2239/086—Binders between particles or fibres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1039—Surface deformation only of sandwich or lamina [e.g., embossed panels]
    • Y10T156/1041—Subsequent to lamination
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/2457—Parallel ribs and/or grooves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24595—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness and varying density
    • Y10T428/24603—Fiber containing component

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

630,666. Felt; paper; compound fabrics. SYLVANIA INDUSTRIAL CORPORATION. Dec. 13, 1944, No. 24983. Convention date, Dec. 18, 1943. [Classes 42 (ii), 96 and 140] A felt or paper-like product is made containing a mixture of non-adhesive and potentially adhesive fibres and the latter " activated," i.e. rendered adhesive, in a plurality of substantially uniformly spaced areas to cause a greater adhesion between fibres in such areas than in the remaining areas, and subsequently de-activated. For activation, there may be used the local application of heat, with or without pressure, e.g. heated patterned rollers or other surfaces, hot water, steam or a blast of hot dry gas; or local treatment with a solvent or swelling agent under appropriate conditions of temperature and concentration; or a latent activating agent combined with the potentially adhesive or non-adhesive fibres, followed by local activation by chemicals, heat or irradiation. A plasticizer may be applied before, and removed after, the activation, and during activation the fibres are preferably subjected to a compacting treatment as by pressure or tension. De-activation may be accomplished by cooling, or, if the potentially adhesive fibres comprise a thermo-setting resin, by heating to a higher temperature, or by the removal of solvent or other activating agent where these are used. In Fig. 3 the felt A is treated with a fluid-activating agent by being laid on the hollow conical projections 32 on the upper surface 33 of a container 34, steam, solvent or dry hot air being pumped by a pump 35, through the orifices in projections 32. Alternatively, the felt may be passed between a pair of rollers, one or both being provided with a raised pattern, and heated by steam admitted to the interior. Such an embossing process may be followed by a similar one for the unactivated portions of the pattern, e.g. a pair of rollers, one of which is heated to form an activated pattern of squares, may be followed by an unheated pair producing alternate raised and depressed pyramidal projections in register with the squares. The resultant material may be sandwiched between paper, felt, or films, to give a self-supporting structure (Fig. 8). To improve the strength of the felt, the activated portions of the pattern are preferably spaced closer together than the average length of the fibres. The felts may be used for battery separators, heat and sound insulation, vibration damping material, gaskets, packings, wicks, and gaseous or liquid filtering media. The potentially adhesive fibres may be produced from various types of synthetic resins, cellulose derivatives, synthetic and natural rubber and substitutes therefore, and mixtures thereof. They may be mixed with non-adhesive fibres such as wood pulp fibres, cotton, flax, jute, kapok, wool, hair, and silk, and synthetic fibres of cellulose and its derivatives, natural and synthetic rubber and derivatives thereof, fibres made from alginic acid, gelatine and casein, or natural or synthetic resins not rendered tacky when the potentially adhesive fibres are activated; also mineral fibres and fibres made by slitting, cutting or shredding non-fibrous films. The potentially adhesive fibres may be pre-formed, or they may be formed simultaneously with the felt by blowing the molten or dissolved substance into a gas, by means of a spray-gun, and collecting the resultant fibres on a belt. Non-adhesive fibres may be produced simultaneously by the same method; or the felt may be deposited from a liquid suspension. Specification 547,288 is referred to.
GB24983/44A 1943-12-18 1944-12-13 Felts and methods of producing the same Expired GB630666A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US514750A US2464301A (en) 1943-12-18 1943-12-18 Textile fibrous product

Publications (1)

Publication Number Publication Date
GB630666A true GB630666A (en) 1949-10-19

Family

ID=24048530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24983/44A Expired GB630666A (en) 1943-12-18 1944-12-13 Felts and methods of producing the same

Country Status (2)

Country Link
US (1) US2464301A (en)
GB (1) GB630666A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045316A (en) * 1957-07-19 1962-07-24 Babcock & Wilcox Co Mineral wool blanket having imprinted surface and method of making the same
US3180486A (en) * 1961-08-30 1965-04-27 Packaging Corp America Carton
US3256583A (en) * 1963-03-15 1966-06-21 Colgate Palmolive Co Steel wool pads
EP2366826A1 (en) 2010-03-18 2011-09-21 Recuperación de Materiales Textiles, S.A. Process and installation for the continuous treatment of bulk solid fibrous materials

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