GB701439A - Improvements in and relating to carbon paper - Google Patents

Improvements in and relating to carbon paper

Info

Publication number
GB701439A
GB701439A GB9668/50A GB966850A GB701439A GB 701439 A GB701439 A GB 701439A GB 9668/50 A GB9668/50 A GB 9668/50A GB 966850 A GB966850 A GB 966850A GB 701439 A GB701439 A GB 701439A
Authority
GB
United Kingdom
Prior art keywords
carbon
polystyrene
koreska
paper
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
Application number
GB9668/50A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB701439A publication Critical patent/GB701439A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/10—Duplicating or marking methods; Sheet materials for use therein by using carbon paper or the like

Landscapes

  • Paper (AREA)
  • Laminated Bodies (AREA)

Abstract

701,439. Carbon papers. KORESKA, R., KORESKA, W., and KORESKA, A., [trading as KORESKA, W., [Firm of]]. April 19, 1950 [Oct. 27, 1949], No. 9668/50. Class 100 (4). [Also in Group VIII] A method of making a non-curling carbon paper consists of treating a paper sheet with a solution containing polystyrene to form a thin layer on one surface of the sheet and thereafter applying carbon ink to the untreated surface. Alternatively existing carbon papers having a relatively poor non-curling coating, e.g. a light wax covering may be coated with the solution. The polystyrene is applied as a solution comprising trichlorethylene together with, if desired, a colouring material and evaporated by hot rollers and an air blast leaving a thin layer of polystyrene comprising 2-3 grams/square metre. Polystyrene is more hydrophobic than known synthetic resins used for the purpose, is in practice non-absorbent to the oil from the carbon layer and has a temperature coefficient nearly equal to the carbon laver. A light coloured base paper may be used, or if the usual dark paper is employed a coloured pigment can be applied as a layer above the polystyrene layer or direct on the paper sheet.
GB9668/50A 1949-10-27 1950-04-19 Improvements in and relating to carbon paper Expired GB701439A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT701439X 1949-10-27

Publications (1)

Publication Number Publication Date
GB701439A true GB701439A (en) 1953-12-23

Family

ID=3679447

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9668/50A Expired GB701439A (en) 1949-10-27 1950-04-19 Improvements in and relating to carbon paper

Country Status (5)

Country Link
BE (1) BE495307A (en)
CH (1) CH278953A (en)
DE (1) DE922586C (en)
FR (1) FR1012636A (en)
GB (1) GB701439A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453135A (en) * 1966-10-10 1969-07-01 Columbia Ribbon Carbon Mfg Curl-resistant transfer elements and methods for preparing same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL112129C (en) * 1956-07-19

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE695979C (en) * 1939-04-06 1940-09-07 Eleonore Raith Carbon paper with backing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453135A (en) * 1966-10-10 1969-07-01 Columbia Ribbon Carbon Mfg Curl-resistant transfer elements and methods for preparing same

Also Published As

Publication number Publication date
FR1012636A (en) 1952-07-15
CH278953A (en) 1951-11-15
BE495307A (en) 1950-08-16
DE922586C (en) 1955-01-20

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