GB707160A - Improvements in or relating to method for manufacturing stencils - Google Patents

Improvements in or relating to method for manufacturing stencils

Info

Publication number
GB707160A
GB707160A GB14620/51A GB1462051A GB707160A GB 707160 A GB707160 A GB 707160A GB 14620/51 A GB14620/51 A GB 14620/51A GB 1462051 A GB1462051 A GB 1462051A GB 707160 A GB707160 A GB 707160A
Authority
GB
United Kingdom
Prior art keywords
blank
original
film
heat
face
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
GB14620/51A
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.)
AB Dick Co
Original Assignee
AB Dick Co
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 AB Dick Co filed Critical AB Dick Co
Publication of GB707160A publication Critical patent/GB707160A/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
    • B41N1/245—Stencils; Stencil materials; Carriers therefor characterised by the thermo-perforable polymeric film heat absorbing means or release coating therefor

Landscapes

  • Printing Plates And Materials Therefor (AREA)

Abstract

707,160. Copying by means of radiant heat. DICK, CO., A. B. June 20, 1951 [July 28, 1950], No. 14620/51. Drawings to Specification. Class 98(2) [Also in Groups VIII and XVI] A method of producing a stencil from an original comprises placing the original in close face-to-face relation with a stencil blank comprising a base tissue having a heat-sensitive film of plastic material on one side which renders the blank ink-impervious, and directing radiations rich in infra-red upon the original, whereby heat is developed in the dark areas thereof, causing rupture of corresponding areas of the plastic film to provide openings through which ink can pass. The original may be arranged with its printed face against either face of the blank, the rays being directed against the blank, or with its non-printed face against the film, the rays being directed against the original. The film is most suitably 0.1-3.0 mm. thick and may be applied by adhesive or by calendering, previously being stretched. The radiant energy may be delivered from a photoflash bulb, carbon arc-lamp, infra-red-ray lamp, or. tungsten filament, with the aid of lenses or reflectors, and the exposure should be as short as possible to avoid blurring due to lateral conduction of heat. A long, thin source such as a hot wire may be used, the radiation traversing the blank at a constant speed, or a point source may be used, the blank and orginal being mounted on a rapidly rotating cylinder, and the source moving axially thereof, until each point has been exposed. The base tissue may be Yoshino paper, wood fibres, wool, silk, cotton, hemp, nylon, cellulose acetate, regenerated cellulose, polyvinylidene chloride, glass fibres, mineral wool or asbestos, with or without a small amount of binder. The plastic film may be polyvinyl, polyethylene, or polystyrene resins, nylon, cellulose esters and ethers, with plasticizers added if desired to lower the softening temperature of the plastic, substantially as described in Specification 696,563.
GB14620/51A 1950-07-28 1951-06-20 Improvements in or relating to method for manufacturing stencils Expired GB707160A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US707160XA 1950-07-28 1950-07-28

Publications (1)

Publication Number Publication Date
GB707160A true GB707160A (en) 1954-04-14

Family

ID=22096955

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14620/51A Expired GB707160A (en) 1950-07-28 1951-06-20 Improvements in or relating to method for manufacturing stencils

Country Status (1)

Country Link
GB (1) GB707160A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091727A (en) * 1973-08-03 1978-05-30 Asahi Dow Limited Heat-sensitive copying method for preparation of printing stencils
EP0670227A1 (en) * 1994-02-28 1995-09-06 Riso Kagaku Corporation Stencil for printing sheet and process for stencil-making the same
EP0703090A1 (en) * 1994-09-09 1996-03-27 Riso Kagaku Corporation Stencil printing apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091727A (en) * 1973-08-03 1978-05-30 Asahi Dow Limited Heat-sensitive copying method for preparation of printing stencils
EP0670227A1 (en) * 1994-02-28 1995-09-06 Riso Kagaku Corporation Stencil for printing sheet and process for stencil-making the same
EP0703090A1 (en) * 1994-09-09 1996-03-27 Riso Kagaku Corporation Stencil printing apparatus

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