GB1156816A - Processes for Making Paper for Gypsum Wallboard and Similar Products. - Google Patents

Processes for Making Paper for Gypsum Wallboard and Similar Products.

Info

Publication number
GB1156816A
GB1156816A GB3978866A GB3978866A GB1156816A GB 1156816 A GB1156816 A GB 1156816A GB 3978866 A GB3978866 A GB 3978866A GB 3978866 A GB3978866 A GB 3978866A GB 1156816 A GB1156816 A GB 1156816A
Authority
GB
United Kingdom
Prior art keywords
slurry
paper
water
sizing agent
bonding surface
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
GB3978866A
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.)
FLEMING AND SONS Inc
Original Assignee
FLEMING AND SONS Inc
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 FLEMING AND SONS Inc filed Critical FLEMING AND SONS Inc
Publication of GB1156816A publication Critical patent/GB1156816A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • D21H17/14—Carboxylic acids; 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
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/17—Ketenes, e.g. ketene dimers
    • 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
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/55—Polyamides; Polyaminoamides; Polyester-amides
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Abstract

1,156,816. Papermaking. FLEMING & SONS Inc. 6 Sept., 1966 [13 Sept., 1965, 7 Feb., 1966], No. 39788/66. Headings D2A and D2B. Porous paper for gypsum wallboard has a bonding surface and an exposed surface, and is made by forming a slurry of papermaking fibre, adding to the slurry a sizing agent that remains water-resistant up to at least 140‹F, treating the slurry to retain the sizing agent at least until the slurry is nearly dried into paper, feeding the slurry to a Fourdrinier process, drying the paper, finishing the bonding surface at the calender stacks with water, and finishing the exposed surface at the calender stacks with an aqueous wax emulsion or a combination of starch and aqueous wax emulsion. As shown, the slurry 11 from the headbox 10 passes to the Fourdrinier screen 12, processing rolls 13 and wet stack 14, where the bonding surface is finished with water from a trough 15 and the exposed surface with wax emulsion or wax and starch mixture from a trough 16. The paper is then taeated on the dry stack 17 and is rolled up at 18. It may have surface ornamentation applied by coatang or printing at 19 or 20 or at a later stage. In one process, the pH of the slurry is adjusted to 7-9, the sizing agent is an alkyl ketene dimer derived from palmitic, stearic, myristic or oleic acid, and is retained by the addition, as retention agent, of a watersoluble cationic thermosetting resin made by reacting a polyalkylene polyamine with diglycolic acid or a C 3 to C 8 saturated aliphatic dicarboxylic acid, and this product with epichlorohydrin. In another process, the pH of the slurry is adjusted to 3.5 to 5, the sizing agent is rosin-alum, and the bonding surface is finished with water made alkaline (pH of' 11 or more) with soda ash to remove sizing agent from that surface. This finishing water may contain a rewetting agent, e.g. a block copolymer containing oxypropylene and oxyethylene groups. Cream face paper may be made by adding a thin layer of light-coloured slurry from a second headbox.
GB3978866A 1965-09-13 1966-09-06 Processes for Making Paper for Gypsum Wallboard and Similar Products. Expired GB1156816A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48690965A 1965-09-13 1965-09-13
US53282866A 1966-02-04 1966-02-04

Publications (1)

Publication Number Publication Date
GB1156816A true GB1156816A (en) 1969-07-02

Family

ID=27048838

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3978866A Expired GB1156816A (en) 1965-09-13 1966-09-06 Processes for Making Paper for Gypsum Wallboard and Similar Products.

Country Status (3)

Country Link
DE (1) DE1696195A1 (en)
FR (1) FR1493875A (en)
GB (1) GB1156816A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2210071A (en) * 1987-09-21 1989-06-01 Jujo Paper Co Ltd An ink jet recording paper
WO2006021614A1 (en) * 2004-08-25 2006-03-02 Walki Wisa Oy Gypsum board coating, gypsum board and cardboard-coated gypsum board production method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2210071A (en) * 1987-09-21 1989-06-01 Jujo Paper Co Ltd An ink jet recording paper
GB2210071B (en) * 1987-09-21 1991-06-12 Jujo Paper Co Ltd An ink jet recording paper
WO2006021614A1 (en) * 2004-08-25 2006-03-02 Walki Wisa Oy Gypsum board coating, gypsum board and cardboard-coated gypsum board production method
US7846553B2 (en) 2004-08-25 2010-12-07 Walki Group Oy Gypsum board coating, gypsum board and cardboard-coated gypsum board production method

Also Published As

Publication number Publication date
DE1696195A1 (en) 1971-11-18
FR1493875A (en) 1967-11-30

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees