US3445268A - Laminar sheet material for making negative transparencies - Google Patents

Laminar sheet material for making negative transparencies Download PDF

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Publication number
US3445268A
US3445268A US406512A US3445268DA US3445268A US 3445268 A US3445268 A US 3445268A US 406512 A US406512 A US 406512A US 3445268D A US3445268D A US 3445268DA US 3445268 A US3445268 A US 3445268A
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sheet material
layer
adhesive
sheet
transparent
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US406512A
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English (en)
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Heinrich Heichlinger
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
    • G03F1/92—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof prepared from printing surfaces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10S156/918—Delaminating processes adapted for specified product, e.g. delaminating medical specimen slide
    • Y10S156/919—Delaminating in preparation for post processing recycling step
    • Y10S156/922—Specified electronic component delaminating in preparation for recycling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2813—Heat or solvent activated or sealable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2839—Web or sheet containing structurally defined element or component and having an adhesive outermost layer with release or antistick coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2848—Three or more layers

Definitions

  • LAMINAR SHEET MATERIAL FOR MAKING NEGATIVE TRANSPARENCIES Filed Oct. 26, 1964 Heinrich flez'c'fiinger United States Patent O LAMINAR SHEET MATERIAL FOR MAKING NEGATIVE TRANSPARENCIES Heinrich Heichlinger, Leonrodstrasse, Kunststoff H, Germany Filed Oct. 26, 1964, Ser. No. 406,512
  • This invention relates to the preparation of negative transparencies which may be employed as negative masters in offset printing, and particularly to a laminar sheet material from which such masters may be prepared by a simple mechanical process.
  • An object of the invention is the provision of a sheet material which can be converted to a negative transparency suitable for use in offset printing by a simple activating step and by contact with type matter and the like ap plied under moderate pressure.
  • Another object is the provision of sheet material for the purpose indicated which, when not activated, is capable of storage without deterioration in the form of tightly wound rolls and which is insensitive to rough handling.
  • Yet another object is the provision of sheet material from which negative transparencies can be made by contact with type matter and the like without preparatory operations which would involve the type matter.
  • the invention in one of its aspects provides a laminar sheet material whose base is a transparent carrier foil.
  • the material further comprises a layer mainly consisting of a solventvapor activated adhesive which is normally nontacky, and also including coloring material which is at least partly opaque to at least a portion of the light spectrum, the term being understood to include the ultraviolet and infrared range.
  • a separating layer is interposed between the foil and the adhesive layer and normally connects the same in parallel alignment. The separating layer prevents strong adhesion of the foil to the colored adhesive layer when the adhesive is activated.
  • FIG. 1 shows sheet material of the invention in cross section on a greatly enlarged scale
  • FIG. 2 shows the material of FIG. 1 arranged on a support, the view being in cross section and on a scale smaller than that of FIG. 1;
  • FIG. 3 illustrates apparatus for activating the sheet material of FIG. 1 in an elevational sectional view on a scale smaller than that of FIG. 2;
  • FIG. 4 illustrates the preparation of a negative transparency from the sheet material of FIG. 1 when activated, the view corresponding to that of FIG. 1.
  • FIG. 1 there is shown a laminar sheet material 1 whose base is a foil 2 of transparent terephthalate polyester material of the type sold under the registered trademark Mylar.
  • the dimensional relationships of the several layers in the sheet material 1 may be read from the drawing, the carrier foil 2 having a thickness of 0.025- millimeter (one mil).
  • the top layer 3 of the sheet material consists mainly of a solvent-vapor activated adhesive which is colored brownish red by finely dispersed organic dyes. It has the following composition in parts by weight:
  • the central separating layer 4 which normally connects the foil 2 with the adhesive layer 3 has the following composition:
  • the sheet is prepared by first applying an aqueous solution of the ingredients of the separating layer 4 to the carrier foil 2, and by evaporating the water as far as possible. Traces of residual water do not significantly affect the weak adhesion between the readily frangible separating layer 4 and the foil 2, nor that between the separating layer and the adhesive layer 3.
  • the latter is applied by dissolving the ingredients listed above in a sufiicient minimum amount of toluene, and by coating the dried separating layer with the toluene solution. After removal of the toluene by evaporation, the top layer 3 is nontacky and adheres to the separating layer sufficiently well to permit handling of the finished sheet material.
  • the sheet material which is preferably prepared in the form of long strips, may be rolled, and stored or shipped in the rolled condition without deterioration.
  • the coatings may be formed by casting, spraying, or brushing relatively dilute solutions of the ingredients on the substrate, or by applying more viscous solutions or dispersions by means of knife coating apparatus.
  • the amounts of solvent to be added to the nonvolatile ingredients listed above will 3 readily be selected to fit the intended method of application.
  • FIG. 2 shows the sheet 1 attached to a wooden board 5, the fasteners employed having been omitted for the sake of clarity.
  • FIG. 3 shows apparatus for activating the adhesive in the top layer 3 of the sheet 1.
  • the apparatus essentially consists of a flat closed box 6 equipped with narrow horizontal ledges 7 on two opposite internal walls.
  • the board 5 is supported on the ledges 7 in such a manner that the attached sheet 1 spacedly faces the bottom of the box 6 which is covered with a layer of toluene 7'.
  • the space 8 between the toluene layer and the sheet 1 is thus saturated with toluene vapors which are partly absorbed in the adhesive of the top layer 3 and activate the adhesive.
  • the board 5 with the attached sheet 1 is withdrawn from the box 6 through a non-illustrated opening normally closed by a cover, and is placed on a table with the sheet 1 facing upward.
  • FIG. 4 shows the position of the sheet at this stage of the process, but the board 5 and other supporting structure have been omitted.
  • FIG. 4 also shows a type 9.
  • a form of which only the type 9 is visible in the drawing is brought down on the top layer 3 of the supported sheet 1 with sufficient pressure to cause adhesion of the contacted portion 10 of the activated layer 3 to the type matter.
  • the form is then moved upwardly away from the nonillnstrated table, it takes the conforming portion 10 of the top layer 3 with it.
  • the activating small amounts of toluene are permitted to evaporate from the perforated adhesive layer 3, whereupon the sheet 1 may be separated from the board 5 and constitutes a negative transparency in which the type matter of the form is represented by fully transparent openings in the colored adhesive layer which itself transmits only brownish red light.
  • Proper positioning of the transparency on an illuminated planning table is greatly facilitated by the fact that even those portions of the sheet which are substantially opaque to actinic light rays are transparent to the non-actinic red part of the spectrum.
  • the very thin, transparent, and frangible separating layer 4 is being retained on the carrier foil 2 when the corresponding portion 10 of the adhesive layer is being lifted by the type 9.
  • Such a behavior of the separating layer is often observed, but is not necessary for proper use of the laminar sheet material.
  • the entire portion of the separating layer corresponding to the lifted top layer portion 10 or fragments thereof may adhere to the removed portion 10 without materially aifecting the result achieved.
  • Vapor-activated adhesive compositions are well known in themselves, and it will be understood that compositions other than that described for the purpose of the disclosure may be employed. Separating media which have the necessary minimal adhesion to the adhesive layer and to a transparent foil base are known and available for use with the known adhesive compositions other than the one described.
  • the polyester material of the carrier foil may be replaced by polystyrene, polycarbonates, cellulose esters, and similar organic polymers that are commercially available in the form of transparent sheets or foils.
  • the separating layer of the composition indicated is equally applicable to such other carrier materials, but better results with other adhesive compositions may be achieved when the dextrin is supplemented or replaced by such known water soluble or water dispersible materials 4 as gelatin, gum arabic, or soap.
  • the glycerol may similarly be replaced by other plasticizers or dehydrating agents.
  • Resins which may replace the pine rosin in the adhesive composition include gum Damar, gum Elemi, gum Copal, polyvinyl ethers and esters, polyisobutylene, and acrylic resins, and those familiar with the formulation of adhesive compositions will readily substitute numerous other suitable materials.
  • the coloring matter incorporated in the adhesive may be chosen in accordance with the process in which the laminar sheet is to be employed.
  • a combination of red and brown dyes in the adhesive layer is impervious to the portion of the spectrum which makes chromate-sensitized gelatin or glue insoluble in water.
  • Other colors may be chosen for printing processes employing other sensitized material.
  • Pigments may replace the soluble dyes in preparing sheet materials which are at least partly transparent to a portion of the light spectrum. The use of sufficient amounts of pigments results in sheets which are normally fully opaque. Carbon black is preferred where maximum contrast between the transparent and opaque portions of the negative is desired.
  • Xylene and the halogenated hydrocarbons commonly employed as dry cleaning solvents may replace the toluene layer 7' when the adhesive composition is based on pine rosin, but vapors of other solvents will be chosen with some compositions that consist largely of other resins. It is not necessary that the solvent vapors be compatible with or soluble in all ingredients of the adhesive composition to achieve the desired plasticizing or softening effect, and the solvent employed in the activating treatment may therefore be different from that employed in the coating process.
  • Ethanol for example, does not soften the rubber and paraffin in the composition described in detail hereinabove, but it is sufiiciently soluble in the rosin, the ethyl cellulose, and the camphor to permit its successful use as an activating vapor.
  • the amount of solvent vapor absorbed by the adhesive layer is readily judged by the tackiness of the sheet surface, which in turn is best determined by touch.
  • the sharpness of the perforations produced in the finished negative transparency is related to the proper softening of the adhesive layer, and the tackiness of the activated sheet which produces the sharpest negatives is readily determined by trial for any particular material that is to be reproduced.
  • a laminar sheet material for making negative transparencies comprising, in combination:
  • a layer consisting essentially of an adhesive composition capable of being activated by solvent vapor, but being normally nontacky, and of coloring material at least partly opaque to at least a portion of the light spectrum;

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printing Methods (AREA)
  • Duplication Or Marking (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Laminated Bodies (AREA)
US406512A 1964-02-27 1964-10-26 Laminar sheet material for making negative transparencies Expired - Lifetime US3445268A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH51897A DE1225490B (de) 1964-02-27 1964-02-27 Material zur Herstellung von negativen Kopiervorlagen

Publications (1)

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US3445268A true US3445268A (en) 1969-05-20

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US406512A Expired - Lifetime US3445268A (en) 1964-02-27 1964-10-26 Laminar sheet material for making negative transparencies

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US (1) US3445268A (fr)
AT (1) AT253534B (fr)
BE (1) BE653148A (fr)
CH (1) CH475580A (fr)
DE (1) DE1225490B (fr)
GB (1) GB1063113A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5277736A (en) * 1990-08-10 1994-01-11 Gerber Scientific Products, Inc. Automatic weeding system and method of use

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2051603A (en) * 1932-06-09 1936-08-18 Hruska Rudolf Process for the production of the explanatory titles for the pictures on cinematographic films
US2372679A (en) * 1939-03-06 1945-04-03 Harry M Magid Coated sheet product
US2413747A (en) * 1941-10-15 1947-01-07 Ncr Co Method of making printing members
US2508725A (en) * 1945-01-13 1950-05-23 Columbia Ribbon & Carbon Transfer medium
US2588572A (en) * 1947-09-23 1952-03-11 Potteiger Roy Victor Method of making mechanical negatives for photocopies
US2810661A (en) * 1954-05-20 1957-10-22 Columbia Ribbon Carbon Mfg Transfer sheet
US2864722A (en) * 1955-03-01 1958-12-16 Glidden Co Plural coating with epoxy primer and alkyd-silicone topcoat
US2891876A (en) * 1956-10-10 1959-06-23 Union Carbide Corp Primers for vinyl chloride resin coatings
US3015575A (en) * 1958-03-10 1962-01-02 Oxford Paper Co Pressure-sensitive, heat-resistant recording material and method of making same
US3104175A (en) * 1961-06-07 1963-09-17 Printing Arts Res Lab Inc Softenable film material and method of using same
US3125458A (en) * 1960-05-20 1964-03-17 transparent

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE546818A (fr) * 1955-04-06

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2051603A (en) * 1932-06-09 1936-08-18 Hruska Rudolf Process for the production of the explanatory titles for the pictures on cinematographic films
US2372679A (en) * 1939-03-06 1945-04-03 Harry M Magid Coated sheet product
US2413747A (en) * 1941-10-15 1947-01-07 Ncr Co Method of making printing members
US2508725A (en) * 1945-01-13 1950-05-23 Columbia Ribbon & Carbon Transfer medium
US2588572A (en) * 1947-09-23 1952-03-11 Potteiger Roy Victor Method of making mechanical negatives for photocopies
US2810661A (en) * 1954-05-20 1957-10-22 Columbia Ribbon Carbon Mfg Transfer sheet
US2864722A (en) * 1955-03-01 1958-12-16 Glidden Co Plural coating with epoxy primer and alkyd-silicone topcoat
US2891876A (en) * 1956-10-10 1959-06-23 Union Carbide Corp Primers for vinyl chloride resin coatings
US3015575A (en) * 1958-03-10 1962-01-02 Oxford Paper Co Pressure-sensitive, heat-resistant recording material and method of making same
US3125458A (en) * 1960-05-20 1964-03-17 transparent
US3104175A (en) * 1961-06-07 1963-09-17 Printing Arts Res Lab Inc Softenable film material and method of using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5277736A (en) * 1990-08-10 1994-01-11 Gerber Scientific Products, Inc. Automatic weeding system and method of use

Also Published As

Publication number Publication date
AT253534B (de) 1967-04-10
BE653148A (fr) 1965-01-18
CH475580A (de) 1969-07-15
GB1063113A (en) 1967-03-30
DE1225490B (de) 1966-09-22

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