US3034922A - Water-soluble paper and method of making it - Google Patents

Water-soluble paper and method of making it Download PDF

Info

Publication number
US3034922A
US3034922A US82894359A US3034922A US 3034922 A US3034922 A US 3034922A US 82894359 A US82894359 A US 82894359A US 3034922 A US3034922 A US 3034922A
Authority
US
United States
Prior art keywords
water
paper
fibres
parts
weight
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
Application number
Other languages
English (en)
Inventor
Boe Hans
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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
Priority claimed from DEF26304A external-priority patent/DE1126233B/de
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Application granted granted Critical
Publication of US3034922A publication Critical patent/US3034922A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • 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
    • D04H1/587—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 characterised by the bonding agents used
    • 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
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/07—Nitrogen-containing compounds
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/25—Cellulose
    • D21H17/27—Esters thereof
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/28—Starch
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
    • D21H17/42—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups anionic
    • D21H17/43—Carboxyl groups or derivatives thereof
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
    • 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
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • 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
    • Y10T428/8305—Miscellaneous [e.g., treated surfaces, etc.]

Definitions

  • the material has great resistance to water and is stable and relatively unchanged even after remaining in contact with water for hours.
  • a paper which disintegrates into its component parts in water cannot therefore be produced by the normal papermaking method, as the felting of the paper fibres results in a bond which is stable even in water.
  • a paper which in water disintegrates into its individual components can be produced by impregnating with a suitable water-soluble and film-forming substance fibres which have been united to form a loose fibre fleece, for example by means of carding machines or fiat cards or by means of a Rando-Webb machine, thereupon drying them and forming the resulting material, if desired after re-wetting, into a paper-like product by calendering.
  • Natural and synthetic fibres such as cotton, linen, hemp, ramie, Wool, viscose staple fibre, acetate staple fibre, Perlon, nylon, Trevira, polyvinyl alcohol fibres or alginate fibres, are suitable for this process.
  • Water-soluble, film-forming substances may be used as binders, such as for example methyl cellulose, cellulose glycolates, polyacrylic acid and acrylates, polymerisation products on a basis of vinyl pyrrolidone, polycarboxylic acids, water-soluble urea formaldehyde condensation products, decomposed glues, water-soluble starch products, dextrins, and sugars; alkali, ammonium, and triethanolamine alginates; carrageen moss solutions, alkali caseinates, or waterglass (alkali metal silicate).
  • the amount of the water-soluble film-forming binder to be incorporated in the fibrous structure is preferably 40%- 100% of the weight of the fibres.
  • Known fillers such as kaolin, chalk, talcum, gypsum, magnesite, pearl white, lithopone, titanium dioxide, kieselguhr, microcellulose, asbestos, and if desired emollients or hygroscopic media, such as glycerine, glycols, polyglcols, and urea, and if desired water-soluble dyestufis may be added to these binders and the loose fibre fleece may be impregnated with an aqueous mixture on any of the well-known machines, e.g. a screen saturator, and dried. The concentration of said aqueous mixture depends upon the type of the employed machine.
  • the aqueous mixture should contain 5 to 50% of said film-forming binders and fillers. Those skilled in the art will find out the preferable concentration for a specific case without difiiculties.
  • the amount of the fillers and emollients which may be added preferably amounts to 60%-200% of the weight of the dry fibers.
  • novel paper products are especially suitable for military purposes. So, radio operators no longer have to burn each sheet after reception and decoding of a cable. It is enough to destroy the text written on the novel paper products by dipping it into water.
  • novel paper products are also suitable for the production of log books for battle ships and submarines. If such naval units should sink in shallow enemy coastal water, it is impossible for enemy divers to rescue and decipher the log books which may contain secret matter.
  • Example 1 A matted fibre fleece composed of 100% staple fibres with a weight of 24 grams per square metre is impregnated with an aqueous mixture containing:
  • a smooth, strong writing paper is obtained, which swells on cold water in a few minutes and, after dissolution of the fibre bond, leaves behind a mixture of insoluble fibres.
  • Example 2 A carded fleece of 50% staple fibres and 50% polyamide fibres, with a weight of 60 grams per square metre, is impregnated with an aqueous mixture containing:
  • Example 3 A longitudinally directed carded fleece, consisting of 25% polyamide fibres, 25% acetate staple fibres, 20% ramie, 30% cotton, with a weight of 16 grams per square metre, is impregnated with an aqueous mixture containmg:
  • the impregnated and dried first stuff with a weight of about 40 grams per square metre is calendered, after wetting, with a roll temperature of about 100 C.
  • This thinner paper disintegrates into its constituents after a very short time in water.
  • a method of producing a writing paper which in Water disintegrates into its individual components, the steps of impregnating a fleece of cardable textile fibres with an aqueous dispersion containing a water-insoluble filler material and a Water-soluble film-forming binder in such amounts as to incorporate said binder material in an amount of to 200 percent, based upon the weight of the dry fibre fleece, drying the thus resulting structure, re-wetting said dry structure to a moisture content of about 3 to 10 percent and smoothing it on a heated calender at a temperature between and C.
  • a writing paper which in water disintegrates into its individual components consisting of cardable textile fibres being bonded together with a Water-soluble filmforming binder and containing insoluble filler material.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)
US82894359 1958-08-01 1959-07-23 Water-soluble paper and method of making it Expired - Lifetime US3034922A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEF26304A DE1126233B (de) 1958-08-01 1958-08-01 Verfahren zur Herstellung eines in Wasser schnell zerfallenden Papiers auf Faservliesbasis
DEF28080A DE1149603B (de) 1958-08-01 1959-03-28 Verfahren zur Herstellung eines in Wasser schnell zerfallenden Papiers auf Faservliesbasis mit verbesserten Brenneigenschaften

Publications (1)

Publication Number Publication Date
US3034922A true US3034922A (en) 1962-05-15

Family

ID=25974152

Family Applications (1)

Application Number Title Priority Date Filing Date
US82894359 Expired - Lifetime US3034922A (en) 1958-08-01 1959-07-23 Water-soluble paper and method of making it

Country Status (4)

Country Link
US (1) US3034922A (en(2012))
DE (1) DE1149603B (en(2012))
GB (2) GB922756A (en(2012))
NL (2) NL274354A (en(2012))

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259104A (en) * 1962-03-13 1966-07-05 Milton L Gerber Apparatus for manufacturing a product
US3431166A (en) * 1964-10-14 1969-03-04 Mishima Paper Mfg Co Ltd Method of making paper which dissolves in water containing papermaking fibers and fibrous cellulose-glycolic acid
US3594928A (en) * 1968-06-13 1971-07-27 Bristol Myers Co Paper having areas dissolvable in water
US3602225A (en) * 1969-05-07 1971-08-31 Fmc Corp Biodegradable absorbent pad
US3607359A (en) * 1967-01-12 1971-09-21 Freudenberg Carl Process for the manufacture of unwoven fabrics bonded with a binding agent and having a smooth surface
US3610245A (en) * 1969-04-10 1971-10-05 Kimberly Clark Co Flushable wrapper for absorbent pads and pad covered therewith
US3640841A (en) * 1969-04-29 1972-02-08 Borden Co Method for controlling adhesion of paper on yankee drier with polyamides and resultant products
US3903889A (en) * 1973-02-16 1975-09-09 First National Bank Of Nevada Disposable liquid absorbent products
US3936347A (en) * 1973-09-05 1976-02-03 Sumitomo Chemical Company, Limited Paper composed mainly of pullulan fibers and method for producing the same
US3993640A (en) * 1973-12-21 1976-11-23 Laporte Industries Limited Treatment of cellulosic materials
US4009313A (en) * 1972-08-30 1977-02-22 Minnesota Mining And Manufacturing Company Enzymatically dispersible non-woven webs
US4061468A (en) * 1974-07-30 1977-12-06 Boehringer Mannheim Gmbh Stable test strips having a water-soluble paper layer and methods for making same
US4124116A (en) * 1977-02-15 1978-11-07 Mccabe Jr Edward G Liquid absorbing sectional pack
US4224366A (en) * 1978-10-19 1980-09-23 Mccabe Jr Edward G Moisture absorption sectional pack
US4543410A (en) * 1982-06-21 1985-09-24 Morca, Inc. Absorbent cellulosic base structures
US4655382A (en) * 1985-11-12 1987-04-07 Raychem Corp. Materials for use in forming electronic interconnect
DK152172B (da) * 1975-12-15 1988-02-08 Hoffmann La Roche Fremgangsmaade til fremstilling af en fast farmaceutisk enhedsdosisform
US4956300A (en) * 1982-01-05 1990-09-11 Helena Laboratories Corporation Aid for determining the presence of occult blood, method of making the aid, and method of using the aid
US5081040A (en) * 1987-06-29 1992-01-14 Helena Laboratories Corporation Composition and kit for testing for occult blood in human and animal excretions, fluids, or tissue matrixes
US5196167A (en) * 1989-04-04 1993-03-23 Helena Laboratories Corporation Fecal occult blood test product with positive and negative controls
US5217874A (en) * 1989-04-04 1993-06-08 Helena Laboratories Corporation Fecal occult blood test product with positive and negative controls
US5273888A (en) * 1984-01-16 1993-12-28 Helena Laboratories Corporation Chemical test kit and method for determining the presence of blood in a specimen and for verifying the effectiveness of the chemicals
US5474545A (en) * 1992-12-07 1995-12-12 Chikazawa; Osamu Diaper and/or sanitary napkin
US5702913A (en) * 1983-12-21 1997-12-30 Helena Laboratories Corporation Chromgen-reagent test system
US20150122938A1 (en) * 2007-06-14 2015-05-07 Sca Tissue France Core intended to be used as a support for a roll of paper
EP2964823A4 (en) * 2013-03-08 2016-11-16 Rhodia Operations DISPERSIBLE FIBER BEAMS AND SUSPENSIONS USING ECOLOGICAL SOLVENTS
WO2020087079A1 (en) 2018-10-26 2020-04-30 Monosol, Llc Multilayer water-dispersible articles
WO2021081475A1 (en) 2019-10-25 2021-04-29 Monosol, Llc Multilayer water-dispersible articles

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394218A (en) * 1966-04-25 1968-07-23 Sanders Associates Inc Destructible printed circuit assemblies containing oxidants
GB2119709B (en) * 1982-04-27 1986-11-26 Adrian Hilton Ellam Hygiene material

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1518944A (en) * 1920-09-13 1924-12-09 Sulzberger Nathan Asbestos paper, etc.
US2208653A (en) * 1937-09-16 1940-07-23 Celanese Corp Safety paper
US2402542A (en) * 1943-04-22 1946-06-25 American Bank Note Co Coated paper and method of making same
US2705688A (en) * 1952-04-07 1955-04-05 Chicopee Mfg Corp Nonwoven fabric and method of producing same
US2880113A (en) * 1956-01-11 1959-03-31 Chicopee Mfg Corp Durable nonwoven fabric and method
US2893754A (en) * 1944-02-29 1959-07-07 George A Richter Special papers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE211902C (en(2012)) *

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1518944A (en) * 1920-09-13 1924-12-09 Sulzberger Nathan Asbestos paper, etc.
US2208653A (en) * 1937-09-16 1940-07-23 Celanese Corp Safety paper
US2402542A (en) * 1943-04-22 1946-06-25 American Bank Note Co Coated paper and method of making same
US2893754A (en) * 1944-02-29 1959-07-07 George A Richter Special papers
US2705688A (en) * 1952-04-07 1955-04-05 Chicopee Mfg Corp Nonwoven fabric and method of producing same
US2880113A (en) * 1956-01-11 1959-03-31 Chicopee Mfg Corp Durable nonwoven fabric and method

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259104A (en) * 1962-03-13 1966-07-05 Milton L Gerber Apparatus for manufacturing a product
US3431166A (en) * 1964-10-14 1969-03-04 Mishima Paper Mfg Co Ltd Method of making paper which dissolves in water containing papermaking fibers and fibrous cellulose-glycolic acid
US3607359A (en) * 1967-01-12 1971-09-21 Freudenberg Carl Process for the manufacture of unwoven fabrics bonded with a binding agent and having a smooth surface
US3594928A (en) * 1968-06-13 1971-07-27 Bristol Myers Co Paper having areas dissolvable in water
US3610245A (en) * 1969-04-10 1971-10-05 Kimberly Clark Co Flushable wrapper for absorbent pads and pad covered therewith
US3640841A (en) * 1969-04-29 1972-02-08 Borden Co Method for controlling adhesion of paper on yankee drier with polyamides and resultant products
US3602225A (en) * 1969-05-07 1971-08-31 Fmc Corp Biodegradable absorbent pad
US4009313A (en) * 1972-08-30 1977-02-22 Minnesota Mining And Manufacturing Company Enzymatically dispersible non-woven webs
US3903889A (en) * 1973-02-16 1975-09-09 First National Bank Of Nevada Disposable liquid absorbent products
US3936347A (en) * 1973-09-05 1976-02-03 Sumitomo Chemical Company, Limited Paper composed mainly of pullulan fibers and method for producing the same
US3993640A (en) * 1973-12-21 1976-11-23 Laporte Industries Limited Treatment of cellulosic materials
US4061468A (en) * 1974-07-30 1977-12-06 Boehringer Mannheim Gmbh Stable test strips having a water-soluble paper layer and methods for making same
DK152172B (da) * 1975-12-15 1988-02-08 Hoffmann La Roche Fremgangsmaade til fremstilling af en fast farmaceutisk enhedsdosisform
US4124116A (en) * 1977-02-15 1978-11-07 Mccabe Jr Edward G Liquid absorbing sectional pack
US4224366A (en) * 1978-10-19 1980-09-23 Mccabe Jr Edward G Moisture absorption sectional pack
US4956300A (en) * 1982-01-05 1990-09-11 Helena Laboratories Corporation Aid for determining the presence of occult blood, method of making the aid, and method of using the aid
US4543410A (en) * 1982-06-21 1985-09-24 Morca, Inc. Absorbent cellulosic base structures
US5702913A (en) * 1983-12-21 1997-12-30 Helena Laboratories Corporation Chromgen-reagent test system
US5273888A (en) * 1984-01-16 1993-12-28 Helena Laboratories Corporation Chemical test kit and method for determining the presence of blood in a specimen and for verifying the effectiveness of the chemicals
US4655382A (en) * 1985-11-12 1987-04-07 Raychem Corp. Materials for use in forming electronic interconnect
US5081040A (en) * 1987-06-29 1992-01-14 Helena Laboratories Corporation Composition and kit for testing for occult blood in human and animal excretions, fluids, or tissue matrixes
US5196167A (en) * 1989-04-04 1993-03-23 Helena Laboratories Corporation Fecal occult blood test product with positive and negative controls
US5217874A (en) * 1989-04-04 1993-06-08 Helena Laboratories Corporation Fecal occult blood test product with positive and negative controls
US5474545A (en) * 1992-12-07 1995-12-12 Chikazawa; Osamu Diaper and/or sanitary napkin
US20150122938A1 (en) * 2007-06-14 2015-05-07 Sca Tissue France Core intended to be used as a support for a roll of paper
US9409745B2 (en) * 2007-06-14 2016-08-09 Sca Tissue France Core intended to be used as a support for a roll of paper
EP2964823A4 (en) * 2013-03-08 2016-11-16 Rhodia Operations DISPERSIBLE FIBER BEAMS AND SUSPENSIONS USING ECOLOGICAL SOLVENTS
WO2020087079A1 (en) 2018-10-26 2020-04-30 Monosol, Llc Multilayer water-dispersible articles
WO2021081475A1 (en) 2019-10-25 2021-04-29 Monosol, Llc Multilayer water-dispersible articles

Also Published As

Publication number Publication date
DE1149603B (de) 1963-05-30
GB922756A (en) 1963-04-03
GB945771A (en) 1964-01-08
NL272052A (en(2012)) 1900-01-01
NL274354A (en(2012)) 1900-01-01

Similar Documents

Publication Publication Date Title
US3034922A (en) Water-soluble paper and method of making it
US3556934A (en) Method of forming a paper containing gaseous filled spheres of thermoplastic resins
US4204054A (en) Paper structures containing improved cross-linked cellulose fibers
US3804706A (en) Inorganic fiber board with binder of thermosetting resin and thermoplastic vinylic resin
CN106012658B (zh) 透气医用胶带基材及其制造方法
GB1263812A (en) A method of forming fibrous sheet material
US2744013A (en) Artificial board
US2454532A (en) Process for defibering lignocellulose while subjected to steam and a digestive chemical
US3034947A (en) Gas-aerosol filter material
US2376688A (en) Thermoplastic fibrous product
US2726164A (en) Stereotype mat
US3269889A (en) Asbestos paper containing carbon and method of making it
US2143831A (en) Synthetic products and process for making them
US2558634A (en) Paper impregnating or saturating composition
US2335702A (en) Artificial leather manufacture
US3989416A (en) Dense paper and method of manufacturing
US4028457A (en) Consolidation of dry formed webs
US2372713A (en) Fibrous product and method of making the same
US4175149A (en) Mineral wool product containing high density skins and method of manufacturing same
US2323339A (en) Momentarily consolidated board product
JP4262444B2 (ja) 加工紙及びそれを用いた紙壁紙
GB252720A (en) Improvements in towels, serviettes, table cloths, handkerchiefs, and similar fabric articles and the processes for the manufacture thereof
US1980881A (en) Manufacture of waterlaid fibrous webs
US3019155A (en) Decorative laminates
US1269905A (en) Fibrous material and method of making the same.