GB1371600A - Process for the manufacture of sheet material - Google Patents

Process for the manufacture of sheet material

Info

Publication number
GB1371600A
GB1371600A GB3345570A GB3345570A GB1371600A GB 1371600 A GB1371600 A GB 1371600A GB 3345570 A GB3345570 A GB 3345570A GB 3345570 A GB3345570 A GB 3345570A GB 1371600 A GB1371600 A GB 1371600A
Authority
GB
United Kingdom
Prior art keywords
starch
suspension
papermaking fibres
filler
adjusted
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
GB3345570A
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.)
Associated Portland Cement Manufacturers Ltd
Original Assignee
Associated Portland Cement Manufacturers Ltd
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 Associated Portland Cement Manufacturers Ltd filed Critical Associated Portland Cement Manufacturers Ltd
Priority to GB3345570A priority Critical patent/GB1371600A/en
Publication of GB1371600A publication Critical patent/GB1371600A/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
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/28—Starch

Landscapes

  • Paper (AREA)

Abstract

1371600 Paper ASSOCIATED PORTLAND CEMENT MFRS Ltd 11 Oct 1971 [9 July 1970 11 Aug 1970] 33455/70 and 38693/ 70 Heading D2B In a process for making paper from an aqueous suspension of papermaking fibres and a starch precipitate formed by bringing starch in solution and/or colloidal suspension in water in the absence of papermaking fibres to a neutral or alkaline pH in the presence of a multivalent cation capable of forming an insoluble complex with starch at said pH, the pH of the aqueous suspension of papermaking fibres and starch precipitate is adjusted to a pH below 7 before draining. The pH may be adjusted by the addition of alum. A filler may be incorporated in the suspension. Preferably, the starch precipitate is formed in the presence of the filler. Reference is made to Patent No. 1282551.
GB3345570A 1971-10-11 1971-10-11 Process for the manufacture of sheet material Expired GB1371600A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3345570A GB1371600A (en) 1971-10-11 1971-10-11 Process for the manufacture of sheet material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3345570A GB1371600A (en) 1971-10-11 1971-10-11 Process for the manufacture of sheet material
GB3869370 1971-10-11

Publications (1)

Publication Number Publication Date
GB1371600A true GB1371600A (en) 1974-10-23

Family

ID=26261876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3345570A Expired GB1371600A (en) 1971-10-11 1971-10-11 Process for the manufacture of sheet material

Country Status (1)

Country Link
GB (1) GB1371600A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4925530A (en) * 1985-12-21 1990-05-15 The Wiggins Teape Group Limited Loaded paper
DE4218667A1 (en) * 1992-06-05 1993-12-09 Dorr Oliver Deutschland Starch precipitation process
US5976322A (en) * 1994-09-08 1999-11-02 Ausimont Spa Process for producing paper and paperboard having high mechanical strength

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4925530A (en) * 1985-12-21 1990-05-15 The Wiggins Teape Group Limited Loaded paper
DE4218667A1 (en) * 1992-06-05 1993-12-09 Dorr Oliver Deutschland Starch precipitation process
US5976322A (en) * 1994-09-08 1999-11-02 Ausimont Spa Process for producing paper and paperboard having high mechanical strength

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee