US3765971A - Process for the dry production of a fiber web - Google Patents
Process for the dry production of a fiber web Download PDFInfo
- Publication number
- US3765971A US3765971A US00082241A US3765971DA US3765971A US 3765971 A US3765971 A US 3765971A US 00082241 A US00082241 A US 00082241A US 3765971D A US3765971D A US 3765971DA US 3765971 A US3765971 A US 3765971A
- Authority
- US
- United States
- Prior art keywords
- web
- bonding agent
- fibers
- bonding
- layer
- 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 - Lifetime
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000007767 bonding agent Substances 0.000 claims abstract description 51
- 239000010410 layer Substances 0.000 claims description 23
- 239000004744 fabric Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 9
- 238000009954 braiding Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 238000000151 deposition Methods 0.000 claims description 2
- 238000009877 rendering Methods 0.000 claims description 2
- 238000002844 melting Methods 0.000 description 9
- 230000008018 melting Effects 0.000 description 9
- 238000001035 drying Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009960 carding Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
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
- D04H1/58—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/64—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
- D04H1/645—Impregnation followed by a solidification process
-
- 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
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/60—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 applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
Definitions
- ABSTRACT [52] US. Cl. 156/62.2, 68/5 R, 156/624,
- the present invention relates to a process and apparatus for producing a fiber web by a dry method, which web is bonded by means of bonding agents.
- the dry method is advantageous in as far as there is no drying needed.
- the fibers are oriented in one direction only so that at least in this direction the tensile strength of the web is rather low unless several layers of fibers are piled up, crossways.
- the fiber web can also be coated with bonding agents. This coating can be done by means of a foam application, by a spreading-on application, application with a doctor blade or by spraying-on the bonding agent.
- the web can be coated with the bonding agent on one side only or on both sides, but nevertheless, the final strength of such a coated web is very often insufficient.
- Another method of producing a dry web consists of adding the so-called melting fibers to the blend of fibers. These melting fibers have a lower melting point than the other fibers and therefore cause all the fibers to stick together after having passed the heating aggregates, wherein only the melting fibers are rendered viscous. However, having solidified again, the melting fibers can re-assume a fiber structure.
- this method could not be made use of in the present invention because the so-called melting fibers are genuine fibers which only feature a low melting point and have to be added before the web is formed so that after having melted, they can cause a sticking together of the web components. This is different with true bonding agents which are usually applied after the proper web formation. The bonding agents mingle with the fibers after the heating-up process, although this mingling is often insufficient.
- the process according to the present invention can be characterized by saying that the bonding agent is applied in the web mixing unit or in the dosing unit in the form of a powdery, granular, fibrous or possibly liquid substance.
- a web is formed in an essentially known way i.e. by means of at least one carding or blowing unit, followed by possibly a pre-bonding process utilizing needling units and/or hot calenders and a subsequent heat-bonding stage, the latter preferably being carried out in a perforated drum or belt steamer in which a vaporous and/or gaseous processing medium is guided, preferably drawn through the web.
- the tensile strength of a web which has been produced by the dry method is satisfactory in one direction only, i.e. vertical to the web length. It is therefore known to pile the individual layers of the web up crossways in order to obtain a sufficient tensile strength in all directions of the final web. It is also known to zig-zag plait the web, which consists of high-quality fibers, onto a carrier fabric or inferior quality, e.g. a twilled cotton fabric or a sacking material length. For a textile material length produced in this way and having at least one cross-plaited surface layer, the present invention suggests applying the bonding agent before or during the plaiting process, between the individual layers. It is advantageous to apply a second bonding agent after the initial or pre-bonding process by means of needling units and/or hot calenders.
- An apparatus for the dry production of a web comprises a mixing unit, a dosing unit, a web forming unit and a bonding unit.
- the mixing unit and/or the dosing unit or the crossplaiter of a device for carrying through any of the described processes can be equipped with a spraying, pulverizing and/or straying assembly.
- the bonding unit can be followed by an essentially known impregnating, slop padding or coating unit or by another bonding unit, preferably a perforated drum or belt dryer.
- FIG. 1 shows a device for the dry production of a web with a subsequent thermic bonding unit
- FIG. 2 shows a device for forming, needling, impregnating, bonding and drying of a carpet length, for example.
- FIG. 1 shows a web fiber mixing machine marked 1.
- the fibers are disorderly fed into the funnel-shaped mixing trough 2 by means of a conveyor belt 3.
- the fibers are continuously mixed with a powdery, granular or fibrous bonding agent 4.
- the fibers are guided onto a conveyor belt 5 which transports them to the pneumatic web layer 6.
- the fibers can also pass a squeezing unit 7 which can be installed immediately in front of the web layer and in which a slight pre-bonding of the fiber blend can be obtained under the influence of heat.
- the web layer 6 consists of a pneumatic assembly in which the fibers are separated by air pressure which is provided by a fan 8, and guided to a pair of perforated drums on which they are piled up and evenly transported to the conveyor 10.
- the web which has already its final form is then bonded in a bonding unit marked 11 and, if necessary, dried.
- the bonding unit comprises several perforated drums 12 which are arranged behind each other and on which the fiber web is uniformly heated and adheres because of a suction draft. The application of hot air to the fiber web causes the rapid bonding of the web which is then wound up on a batching device.
- FIG. 2 shows a device for the production of carpets, for instance.
- the web of high-quality fibers which is to serve as a surface layer, is produced in the above described way or in a machine assembly 13.
- the fibers which are mixed with the bonding agent are guided onto a vibration chute 15 from which they are then transferred into a known web layer 16.
- a conveyor 17 transports the completely formed but still unbonded web to the cross-plaiter 18 which comprises three conveyors and where the web is rendered thicker before being put crossways onto the carrier fabric which is supplied by the conveyor 19.
- the double-layer material length is then fed into the needle looms 20 and 21 where the carrier layer and the still unbonded fiber web, in which the bonding agent is evenly distributed are mechanically united.
- the final step of the carpet production is the thermic bonding process which can take place either immediately afterwards in the apparatus 22 or later, i.e., when the material has passed another impregnating or coating unit 23, in which further additives are applied to the material length in order to improve its tensile strength.
- a continuous method for producing a fiber web by a dry method which comprises admixing at least a portion of a bonding agent uniformly with loose fibers, forming the resulting uniform admixture of the loose fibers and said bonding agent into a fiber web, the bonding agent being uniformly distributed throughout the formed web, and thereafter bonding the fiber web together by drawing a heated gaseous processing medium uniformly through said web.
- a method for producing a fiber web by a dry method which comprises mixing a powdery, granular, or fibrous bonding agent uniformly with loose fibers, distributing the resulting uniform admixture of fibers and the bonding agent by air pressure to pile up the admixture of the fibers and the bonding agent between a pair of rotating perforated drums, forming the admixture of the fibers and the bonding agent into a fiber web on said perforated drums, and bonding the resulting fiber web by conveying the web on the surface of at least one sieve drum means subjected to a suction draft and by drawing a heated gaseous processing medium uniformly through said web on said sieve drum means.
- a method for producing carpets by a dry method which comprises mixing a granular, powdery, or fibrous bonding agent uniformly with loose carpet fibers, forming the resulting uniform admixture of the fibers and the bonding agent into an unbonded web layer, rendering the web layer thicker by cross-plaiting the web layer, depositing the thick resulting web layer crossways onto a carrier fabric, mechanically uniting the ment medium through the web and through the carrier fabric on said sieve drum means.
Abstract
Description
Claims (8)
- 2. The method of claim 1, wherein the bonding agent is mixed with the loose fibers in a powdery, granular, fibrous or liquid form.
- 3. The method of claim 1, wherein the loose fibers are cross-plaited on a carrier fabric forming a plurality of cross-plaited surface layer and additional portion of the bonding agent is applied between the individual layers before or during the cross-plaiting step.
- 4. The method of claim 1, wherein the web is pre-bonded by utilizing needles and/or hot calenders before being thermally bonded by drawing the heated gaseous processing medium through the web, said web being thermally bonded while being conveyed on the surface of at least one sieve drum means subjected to a suction draft.
- 5. The method of claim 4, wherein an additional bonding agent is applied after the pre-bonding step and before the step of drawing the heated gaseous medium through the web.
- 6. A method for producing a fiber web by a dry method which comprises mixing a powdery, granular, or fibrous bonding agent uniformly with loose fibers, distributing the resulting uniform admixture of fibers and the bonding agent by air pressure to pile up the admixture of the fibers and the bonding agent between a pair of rotating perforated drums, forming the admixture of the fibers and the bonding agent into a fiber web on said perforated drums, and bonding the resulting fiber web by conveying the web on the surface of at least one sieve drum means subjected to a suction draft and by drawing a heated gaseous processing medium uniformly through said web on said sieve drum means.
- 7. The method of claim 6, wherein the bonding of the web is effected by drawing hot air through the web.
- 8. A method for producing carpets by a dry method which comprises mixing a granular, powdery, or fibrous bonding agent uniformly with loose carpet fibers, forming the resulting uniform admixture of the fibers and the bonding agent into an unbonded web layer, rendering the web layer thicker by cross-plaiting the web layer, depositing the thick resulting web layer crossways onto a carrier fabric, mechanically uniting the carrier fabric and the still unbonded fiber web layer, containing said bonding agent uniformly distributed throughout, and thereafter thermally bonding the web by conveying said web and said carrier fabric on the surface of at least one sieve drum means subjected to a suction draft and by drawing a heated gaseous treatment medium through the web and through the carrier fabric on said sieve drum means.
- 9. The method of claim 8, wherein the composite is impregnated with an additive to improve its tensile strength prior to thermal bonding.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691952741 DE1952741A1 (en) | 1969-10-20 | 1969-10-20 | Process and machine system for producing a nonwoven web by dry means |
Publications (1)
Publication Number | Publication Date |
---|---|
US3765971A true US3765971A (en) | 1973-10-16 |
Family
ID=5748667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00082241A Expired - Lifetime US3765971A (en) | 1969-10-20 | 1970-10-20 | Process for the dry production of a fiber web |
Country Status (2)
Country | Link |
---|---|
US (1) | US3765971A (en) |
DE (1) | DE1952741A1 (en) |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3862867A (en) * | 1972-05-25 | 1975-01-28 | Kendall & Co | Process for producing reinforced nonwoven fabrics |
US3947310A (en) * | 1974-07-11 | 1976-03-30 | Chevron Research Company | Extra-wide nonwoven sheets |
US3993518A (en) * | 1974-09-19 | 1976-11-23 | Buck Jr George Sumner | Cotton batt and method for producing such |
US4260265A (en) * | 1978-07-07 | 1981-04-07 | The Babcock & Wilcox Company | Fiber-resin blending technique |
US4319870A (en) * | 1979-08-27 | 1982-03-16 | American Can Company | Apparatus for the manufacture of fibrous webs |
US4753693A (en) * | 1986-04-16 | 1988-06-28 | Cumulus Fibres, Inc. | Method for forming a vacuum bonded non-woven batt |
US5057166A (en) * | 1989-03-20 | 1991-10-15 | Weyerhaeuser Corporation | Method of treating discontinuous fibers |
US5064689A (en) * | 1989-03-20 | 1991-11-12 | Weyerhaeuser Company | Method of treating discontinuous fibers |
US5071675A (en) * | 1989-03-20 | 1991-12-10 | Weyerhaeuser Company | Method of applying liquid sizing of alkyl ketene dimer in ethanol to cellulose fibers entrained in a gas stream |
US5079074A (en) * | 1990-08-31 | 1992-01-07 | Cumulus Fibres, Inc. | Dual density non-woven batt |
US5230959A (en) * | 1989-03-20 | 1993-07-27 | Weyerhaeuser Company | Coated fiber product with adhered super absorbent particles |
US5324391A (en) * | 1990-10-31 | 1994-06-28 | Weyerhaeuser Company | Method for crosslinking cellulose fibers |
US5432000A (en) * | 1989-03-20 | 1995-07-11 | Weyerhaeuser Company | Binder coated discontinuous fibers with adhered particulate materials |
US5437418A (en) * | 1987-01-20 | 1995-08-01 | Weyerhaeuser Company | Apparatus for crosslinking individualized cellulose fibers |
US5498478A (en) * | 1989-03-20 | 1996-03-12 | Weyerhaeuser Company | Polyethylene glycol as a binder material for fibers |
US5556976A (en) * | 1987-01-20 | 1996-09-17 | Jewell; Richard A. | Reactive cyclic N-sulfatoimides and cellulose crosslinked with the imides |
US5582644A (en) * | 1991-12-17 | 1996-12-10 | Weyerhaeuser Company | Hopper blender system and method for coating fibers |
US5804005A (en) * | 1996-05-09 | 1998-09-08 | Buck; George S. | Bonding fibrous batts with thermosetting fiber-binders of certain expoxy resins |
US6296795B1 (en) | 2000-05-19 | 2001-10-02 | George S. Buck | Non-woven fibrous batts, shaped articles, fiber binders and related processes |
US20060027944A1 (en) * | 2004-08-09 | 2006-02-09 | Rachelle Bentley | Apparatus and method for in-line manufacturing of disposable hygienic absorbent products and product produced by the apparatus and methods |
US20060143869A1 (en) * | 2004-12-21 | 2006-07-06 | Kronatec Ag | Process for the production of a wood fiber insulating material board or mat and wood fiber insulating material boards or mats produced by this process |
US20150252530A1 (en) * | 2014-03-07 | 2015-09-10 | Seiko Epson Corporation | Sheet manufacturing apparatus |
US9617103B2 (en) | 2014-03-07 | 2017-04-11 | Seiko Epson Corporation | Sheet manufacturing apparatus |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2625177C3 (en) * | 1976-06-04 | 1985-01-24 | Vereinigte Papierwerke Schickedanz & Co, 8500 Nürnberg | Absorbent bodies for hygienic purposes |
DE3831496C2 (en) * | 1988-09-16 | 2001-03-22 | Fleissner Maschf Gmbh Co | Process for the thermal consolidation of nonwovens with binding powder |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2794759A (en) * | 1954-06-23 | 1957-06-04 | Fiber Glass Ind Inc | Method of making a resin impregnated fiber glass mat and product |
US3147165A (en) * | 1959-12-07 | 1964-09-01 | Owens Corning Fiberglass Corp | Method of manufacturing pipe insulation |
US3220900A (en) * | 1960-03-14 | 1965-11-30 | Abitibi Power & Paper Co | Process for the manufacture of hard, or semi-hard, molded bodies of wood fiber material, preferentially wood fiber boards, having a resistant, covering surface |
US3246064A (en) * | 1964-12-11 | 1966-04-12 | Ferro Corp | Method of manufacturing a felted fibrous mat |
US3529447A (en) * | 1967-05-24 | 1970-09-22 | Vepa Ag | Process and apparatus for the continuous treatment of textile materials |
-
1969
- 1969-10-20 DE DE19691952741 patent/DE1952741A1/en active Pending
-
1970
- 1970-10-20 US US00082241A patent/US3765971A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2794759A (en) * | 1954-06-23 | 1957-06-04 | Fiber Glass Ind Inc | Method of making a resin impregnated fiber glass mat and product |
US3147165A (en) * | 1959-12-07 | 1964-09-01 | Owens Corning Fiberglass Corp | Method of manufacturing pipe insulation |
US3220900A (en) * | 1960-03-14 | 1965-11-30 | Abitibi Power & Paper Co | Process for the manufacture of hard, or semi-hard, molded bodies of wood fiber material, preferentially wood fiber boards, having a resistant, covering surface |
US3246064A (en) * | 1964-12-11 | 1966-04-12 | Ferro Corp | Method of manufacturing a felted fibrous mat |
US3529447A (en) * | 1967-05-24 | 1970-09-22 | Vepa Ag | Process and apparatus for the continuous treatment of textile materials |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3862867A (en) * | 1972-05-25 | 1975-01-28 | Kendall & Co | Process for producing reinforced nonwoven fabrics |
US3947310A (en) * | 1974-07-11 | 1976-03-30 | Chevron Research Company | Extra-wide nonwoven sheets |
US3993518A (en) * | 1974-09-19 | 1976-11-23 | Buck Jr George Sumner | Cotton batt and method for producing such |
US4260265A (en) * | 1978-07-07 | 1981-04-07 | The Babcock & Wilcox Company | Fiber-resin blending technique |
US4319870A (en) * | 1979-08-27 | 1982-03-16 | American Can Company | Apparatus for the manufacture of fibrous webs |
US4753693A (en) * | 1986-04-16 | 1988-06-28 | Cumulus Fibres, Inc. | Method for forming a vacuum bonded non-woven batt |
US5437418A (en) * | 1987-01-20 | 1995-08-01 | Weyerhaeuser Company | Apparatus for crosslinking individualized cellulose fibers |
US6436231B1 (en) | 1987-01-20 | 2002-08-20 | Weyerhaeuser | Method and apparatus for crosslinking individualized cellulose fibers |
US5556976A (en) * | 1987-01-20 | 1996-09-17 | Jewell; Richard A. | Reactive cyclic N-sulfatoimides and cellulose crosslinked with the imides |
US5498478A (en) * | 1989-03-20 | 1996-03-12 | Weyerhaeuser Company | Polyethylene glycol as a binder material for fibers |
US6270893B1 (en) | 1989-03-20 | 2001-08-07 | Weyerhaeuser Company | Coated fiber product with adhered super absorbent particles |
US5057166A (en) * | 1989-03-20 | 1991-10-15 | Weyerhaeuser Corporation | Method of treating discontinuous fibers |
US5432000A (en) * | 1989-03-20 | 1995-07-11 | Weyerhaeuser Company | Binder coated discontinuous fibers with adhered particulate materials |
US5230959A (en) * | 1989-03-20 | 1993-07-27 | Weyerhaeuser Company | Coated fiber product with adhered super absorbent particles |
US5071675A (en) * | 1989-03-20 | 1991-12-10 | Weyerhaeuser Company | Method of applying liquid sizing of alkyl ketene dimer in ethanol to cellulose fibers entrained in a gas stream |
US5516585A (en) * | 1989-03-20 | 1996-05-14 | Weyerhaeuser Company | Coated fiber product with adhered super absorbent particles |
US5064689A (en) * | 1989-03-20 | 1991-11-12 | Weyerhaeuser Company | Method of treating discontinuous fibers |
US5079074A (en) * | 1990-08-31 | 1992-01-07 | Cumulus Fibres, Inc. | Dual density non-woven batt |
US5324391A (en) * | 1990-10-31 | 1994-06-28 | Weyerhaeuser Company | Method for crosslinking cellulose fibers |
US5582644A (en) * | 1991-12-17 | 1996-12-10 | Weyerhaeuser Company | Hopper blender system and method for coating fibers |
US6039821A (en) * | 1996-05-09 | 2000-03-21 | Buck; George S. | Bonding fibrous batts with thermosetting fiber-binders of certain epoxy resins |
US5804005A (en) * | 1996-05-09 | 1998-09-08 | Buck; George S. | Bonding fibrous batts with thermosetting fiber-binders of certain expoxy resins |
US6296795B1 (en) | 2000-05-19 | 2001-10-02 | George S. Buck | Non-woven fibrous batts, shaped articles, fiber binders and related processes |
EP1162297A1 (en) * | 2000-05-19 | 2001-12-12 | BUCK, George S. | Non-woven fibrous batts, shaped articles, fiber binders and related processes |
US20060027944A1 (en) * | 2004-08-09 | 2006-02-09 | Rachelle Bentley | Apparatus and method for in-line manufacturing of disposable hygienic absorbent products and product produced by the apparatus and methods |
US20060143869A1 (en) * | 2004-12-21 | 2006-07-06 | Kronatec Ag | Process for the production of a wood fiber insulating material board or mat and wood fiber insulating material boards or mats produced by this process |
US8273201B2 (en) * | 2004-12-21 | 2012-09-25 | Kronotic Ag | Process for the production of a wood fiber insulating material board or mat and wood fiber insulating material boards or mats produced by this process |
US20150252530A1 (en) * | 2014-03-07 | 2015-09-10 | Seiko Epson Corporation | Sheet manufacturing apparatus |
US9540768B2 (en) * | 2014-03-07 | 2017-01-10 | Seiko Epson Corporation | Sheet manufacturing apparatus |
US9617103B2 (en) | 2014-03-07 | 2017-04-11 | Seiko Epson Corporation | Sheet manufacturing apparatus |
US9890005B2 (en) | 2014-03-07 | 2018-02-13 | Seiko Epson Corporation | Sheet manufacturing apparatus |
Also Published As
Publication number | Publication date |
---|---|
DE1952741A1 (en) | 1971-05-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3765971A (en) | Process for the dry production of a fiber web | |
US5008131A (en) | Method and apparatus for impregnating a porous substrate with foam | |
US6689242B2 (en) | Acquisition/distribution layer and method of making same | |
US5108678A (en) | Process of making a fiber-reinforced plastic sheet having a gradient of fiber bundle size within the sheet | |
RU2178027C2 (en) | Composite material manufacture method and apparatus | |
US3616031A (en) | Process for bonding felts and needled felts | |
US4045262A (en) | Method of making laminar material having a base of bonded wood particles | |
GB621950A (en) | Laminated products and methods of making them | |
US2491258A (en) | Manufacture of pile fabrics | |
JPH01282397A (en) | Method for adhering particle and binder to base cloth | |
US2743573A (en) | Methods of production of textile yarns | |
US3806405A (en) | Method of applying a binder to a wetlaid fibrous web | |
GB851410A (en) | Fabrics composed of locally bonded fibrous webs | |
US3639207A (en) | Method for drying nonwoven fabric | |
US3811988A (en) | Apparatus for continuous bonding of felt materials by sequential heating and cooling operations | |
US5617618A (en) | Method and device for finishing thick carded fleeces | |
US3822176A (en) | Carpet underlay | |
US3033726A (en) | Method for bonding fibers together | |
US2964441A (en) | Method of making a fabric | |
US3723161A (en) | Process and apparatus for the production of synthetic leather | |
US3666595A (en) | Method for manufacture of compacted composite fabrics using thermoplastic adhesives | |
US5200128A (en) | Process for producing binder-containing fibrous mats | |
US3687712A (en) | Wear resistant nonwoven fabric | |
US2931421A (en) | Apparatus for the production of a thin sheet or mat from glass fibres | |
US2742951A (en) | Art of curling or kinking stretched filaments and forming pads therefrom |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCF | Information on status: patent grant |
Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES) |
|
AS | Assignment |
Owner name: FIBERLOK, INCORPORATED, A CORP OF TN,TENNESSEE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VEPA AKTIENGESELLSCHAFT;REEL/FRAME:004659/0853 Effective date: 19861124 Owner name: FIBERLOK, INCORPORATED, 223 SCOTT STREET, MEMPHIS, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:VEPA AKTIENGESELLSCHAFT;REEL/FRAME:004659/0853 Effective date: 19861124 |