GB697307A - Improvements in or relating to the manufacture of carbon paper - Google Patents

Improvements in or relating to the manufacture of carbon paper

Info

Publication number
GB697307A
GB697307A GB722951A GB722951A GB697307A GB 697307 A GB697307 A GB 697307A GB 722951 A GB722951 A GB 722951A GB 722951 A GB722951 A GB 722951A GB 697307 A GB697307 A GB 697307A
Authority
GB
United Kingdom
Prior art keywords
parts
soot
paper
layer
papers
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
GB722951A
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.)
GUENTHER WAGNER VERWALTUNGS GE
Original Assignee
GUENTHER WAGNER VERWALTUNGS GE
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 GUENTHER WAGNER VERWALTUNGS GE filed Critical GUENTHER WAGNER VERWALTUNGS GE
Publication of GB697307A publication Critical patent/GB697307A/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

Abstract

697,307. Carbon papers. WAGNER VERWALTUNGS-GES., G., [trading as WAGNER, G. [Firm of] ]. March 28,1951 [May 11, 1950], No. 7229/51. Class 100(iv) A method for the manufacture of carbon paper of the kind wherein the papers when in the pulp stage are treated with a dye of a colour other than black, consists of applying a non-translucent layer containing, e.g. soot which does not transfer its colour with the transfer layer which is applied over the intermediate non-translucent layer. Carbon papers with a coloured base sheet after use become translucent and are in consequence often prematurely regarded as exhausted; the intermediate layer overcomes this and consists of natural or artificial resins incorporating soot or other suitable pigments. In an example 15 parts polyvinyl acetate are dissolved in 25 parts organic solvent of medium boiling point in which is ground 10 parts of soot. The whole is then made up to 100 parts by spirits which may include a small quantity of aniline dye and tannin. When applied to the paper the solvents evaporate on heated rollers of the machine and are removed by suction. The reverse side of the paper may be waxed with a colourless wax layer, to prevent curling.
GB722951A 1950-05-11 1951-03-28 Improvements in or relating to the manufacture of carbon paper Expired GB697307A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEW2021A DE952683C (en) 1950-05-11 1950-05-11 Carbon paper that remains opaque in use
DEW8470A DE1067680B (en) 1950-05-11 1952-04-29 Carbon paper that remains opaque in use

Publications (1)

Publication Number Publication Date
GB697307A true GB697307A (en) 1953-09-16

Family

ID=26002106

Family Applications (2)

Application Number Title Priority Date Filing Date
GB722951A Expired GB697307A (en) 1950-05-11 1951-03-28 Improvements in or relating to the manufacture of carbon paper
GB1097853A Expired GB779404A (en) 1950-05-11 1953-04-21 An improved carbon paper and method of manufacturing it

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1097853A Expired GB779404A (en) 1950-05-11 1953-04-21 An improved carbon paper and method of manufacturing it

Country Status (5)

Country Link
CH (1) CH295090A (en)
DE (2) DE952683C (en)
FR (2) FR1031459A (en)
GB (2) GB697307A (en)
NL (1) NL78885C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041200A (en) * 1958-08-28 1962-06-26 Champion Papers Inc Paper and process for manufacture

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975625C (en) * 1950-11-18 1962-03-01 Geha Werke Gmbh Process for the production of carbon paper
NL286218A (en) * 1961-12-14 1900-01-01

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1544675A (en) * 1924-04-18 1925-07-07 Standard Products Corp Transfer sheet
US1608084A (en) * 1925-12-04 1926-11-23 Henry N Dons Process for the manufacturing of carbon paper for use on typewriters
DE520036C (en) * 1928-03-08 1931-03-06 Guenther Wagner Fa Process for the production of carbon paper
DE518273C (en) * 1928-10-08 1931-02-14 Guenther Wagner Fa Process for the production of carbon paper
US2000031A (en) * 1932-04-11 1935-05-07 Vanderbilt Co R T Composition of matter, etc.
AT143648B (en) * 1932-05-31 1935-11-25 Rinco A G Process for the production of non-penetrating and non-smearing carbonless ink coverings on substrates such as carbonless paper, carbonless forms and the like. like
CH182417A (en) * 1934-06-13 1936-02-15 C Von Muralt Franz Process to reduce the drying out of moist substances applied to a support.
AT153233B (en) * 1937-04-20 1938-04-25 Wilhelm Koreska Carbon paper with a waxed back.
AT156077B (en) * 1937-11-16 1939-05-10 Wilhelm Koreska Carbon paper with a waxed back.
DE743105C (en) * 1938-12-16 1943-12-17 Papierfabriken Gruenhainichen Writing paper with copy surfaces on the back
CH216172A (en) * 1939-06-24 1941-08-15 George Francis Frederick Process for the production of carbon paper.
BE453168A (en) * 1943-12-29
GB609914A (en) * 1946-03-25 1948-10-08 Ellams Duplicator Company Ltd Improvements in or relating to carbon paper
AT170283B (en) * 1949-10-27 1952-02-11 Koreska Gmbh W Carbon paper with a leveling layer made of synthetic resin and the process for its manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3041200A (en) * 1958-08-28 1962-06-26 Champion Papers Inc Paper and process for manufacture

Also Published As

Publication number Publication date
DE952683C (en) 1956-11-22
FR64240E (en) 1955-11-02
NL78885C (en)
FR1031459A (en) 1953-06-24
GB779404A (en) 1957-07-17
CH295090A (en) 1953-12-15
DE1067680B (en) 1959-10-22

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