GB207513A - Improvements in stencil sheets - Google Patents

Improvements in stencil sheets

Info

Publication number
GB207513A
GB207513A GB27014/23A GB2701423A GB207513A GB 207513 A GB207513 A GB 207513A GB 27014/23 A GB27014/23 A GB 27014/23A GB 2701423 A GB2701423 A GB 2701423A GB 207513 A GB207513 A GB 207513A
Authority
GB
United Kingdom
Prior art keywords
salt
acetic acid
gelatine
aluminium
solution
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
GB27014/23A
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.)
WESTERN ELECTRIC CO Ltd
AT&T Corp
Original Assignee
WESTERN ELECTRIC CO Ltd
Western Electric Co 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 WESTERN ELECTRIC CO Ltd, Western Electric Co Inc filed Critical WESTERN ELECTRIC CO Ltd
Publication of GB207513A publication Critical patent/GB207513A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/24—Stencils; Stencil materials; Carriers therefor
    • B41N1/243—Stencils; Stencil materials; Carriers therefor characterised by the ink pervious sheet, e.g. yoshino paper

Landscapes

  • Printing Plates And Materials Therefor (AREA)

Abstract

207,513. Western Electric Co., Ltd., (Assignees of Grange, J. D.). Nov. 24, 1922, [Convention date]. Stencils.-A stencil sheet, adapted to be formed into a stencil by impact with type or other means, is prepared from a fibrous base such as Yoshino or like paper impregnated with a composition comprising gelatine, acetic acid, and an aluminium salt. The impregnating medium preferably consists of a mixture of a solution of gelatine, sugar, glycerine, acetic acid, a colouring material and water to which is added a solution of an aluminium salt such as aluminium sulphate, ammonium alum, or potassium alum. Suitable proportions are given as an example, the proportion of salt being between 0.22 and 0.6 per cent of the total weight. The acetic acid is used to retard the hardening action of the salt. As colouring material an acid dye is preferably employed. The impregnated sheets are preferably dried in an enclosed heated chamber. S,pecification 13851/93, [Class 101, Printing other than letterpress &c.], is referred to.
GB27014/23A 1922-11-24 1923-10-29 Improvements in stencil sheets Expired GB207513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US603125A US1562228A (en) 1922-11-24 1922-11-24 Stencil sheet

Publications (1)

Publication Number Publication Date
GB207513A true GB207513A (en) 1924-08-21

Family

ID=24414189

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27014/23A Expired GB207513A (en) 1922-11-24 1923-10-29 Improvements in stencil sheets

Country Status (2)

Country Link
US (1) US1562228A (en)
GB (1) GB207513A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2757608A (en) * 1950-11-04 1956-08-07 Ernest C Schoech Apparatus for applying lettering and designs
US3164484A (en) * 1962-01-16 1965-01-05 Interchem Corp Heat-sensitive copying sheet

Also Published As

Publication number Publication date
US1562228A (en) 1925-11-17

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