US2306525A - Method of preparing multitone coated articles - Google Patents

Method of preparing multitone coated articles Download PDF

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Publication number
US2306525A
US2306525A US183675A US18367538A US2306525A US 2306525 A US2306525 A US 2306525A US 183675 A US183675 A US 183675A US 18367538 A US18367538 A US 18367538A US 2306525 A US2306525 A US 2306525A
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United States
Prior art keywords
film
preparing
multitone
coated articles
blushed
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Expired - Lifetime
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US183675A
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Cummings John Seneca
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Interchemical Corp
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Interchemical Corp
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Priority to US183675A priority Critical patent/US2306525A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/124Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components

Definitions

  • This invention relates to novel multi-tone coated articles such as paper, Cellophane, and the like, and to methods of preparing them.
  • My new multi-tone coated materials comprise base materials coated with films of coating compositions which have been allowed to blush.” portions of which films havebeencompacted after drying by heat and/or pressure, whereby ,a multi-tone effect is obtained due to the whiteness added to the uncompacted portion of the film by the blush remaining therein.
  • This type of matte translucent opaque white film has heretofore been used to coat cloth and paper, to produce tracing cloth.
  • the blushed film will yield a pastel shade; after embossing, the color will vary from that pastel shade to much deeper tones of the same color.
  • My invention makes possible the production 01' multi-tone papers by the use of a single coating composition and operation without the need of printing a multiplicity of colors. Not only is the cost lowered, but the quality of the product is improved, since the use of a single coating layer precludes the possibility of lack of adhesion between different coating layers.
  • Typical examples of my invention are as follows:
  • Example I Y Parts by weight SS Nitrocellulose 5 sec. (wet with 30% butyl alcohol) 13.8 Acetone 5.0 Methyl alcohol (C. P.) 74.4 Water A 4.2 Glycerine 2.6
  • ing roller is heated to facilitate the removal of air from the thermoplastic coating.
  • Example I Ingredient: Parts by weight Cellulose compound-- 4 sec. SS Nitrocellulose (wet with The chrome green is dispersed by grinding in the plasticizer on a roller mill.
  • the lacquer may be applied to Cellophane, paper, etc.
  • My invention has many possible applications and is particularly adapted for the manufacture of novelty wrapping papers, wallpapers, Cellophane sheeting and the like, although it may be applied to any sort of surface.
  • the method of making a multi-tone article which comprises treating a base carrying a blushed film of plastic cellulose derivative coating composition, the color of which is whitened due to occlusion of air in the film, and which filmis capable of being compacted by the application of pressure thereto, by the simultaneous application of pressures varying from area to area of contiguous portions 01' the film, the greatest pressure used being sufiicient to force substantial quantities of air out of the film to compact it and thereby deepen the color thereof, and the least pressure used being lnsufiicient to force corresponding quantities of air out of the film, thereby substantially maintaining the original blushed appearance, whereby a multi-toned article is produced having relatively uncompacted portions of lighter color and compacted portions of deeper color.

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Description

' Patented Dec. 29, 1942 METHOD OF PREPARING MULTITONE COATED ARTICLES John Seneca Cummings, Brooklyn, N. Y., asslgnor to Interchemical Corporation, New York, N. Y., a corporation of Ohio No Drawing. Application January 6, 1938, Serial No. 183,675
1 Claim.
This invention relates to novel multi-tone coated articles such as paper, Cellophane, and the like, and to methods of preparing them.
My new multi-tone coated materials comprise base materials coated with films of coating compositions which have been allowed to blush." portions of which films havebeencompacted after drying by heat and/or pressure, whereby ,a multi-tone effect is obtained due to the whiteness added to the uncompacted portion of the film by the blush remaining therein.
The phenomenon of blushing is one well known to the coating industry. While unpigmented coating compositions which dry by evaporation of solvent (lacquers) generally dry down to smooth homogeneous transparent films, it is possible to produce non-homogeneous films by disturbing the solvent balance so that the binder is insoluble in the solvent during some portion of the film-forming operation, and remains insoluble thereafter. In such cases, the binder precipitates out in the form of very small discrete particles of transparent material, with air between the particles; the resultant film is translucent or opaque, appears white to the eye and is generally matte. Nitrocellulose, other cellulose derivatives and resins all can be made to yield such films, either by proper choice of organic solvents, or by judicious use of water in the film; the methods 01' producing such films are well known in the art, largely because a knowledge of the conditions which favor blushing permit formulators to avoid this generally undesirable phenomenon. This type of matte translucent opaque white film has heretofore been used to coat cloth and paper, to produce tracing cloth.
In my co-pending application, Serial No. 75,570. filed April 21, 1936, I have disclosed the possibility of controlling the solvent balance in such compositions so that the film deposited during the early stages of drying is clear and transparent, while the film deposited in the late stages is blushed and opaque, whereby a blushed film is obtained enclosed in a glossy envelope, yielding a glossy opaque finish for paper and the like. I have now discovered that if a film of coat-- in; composition is applied to a surface, and allowed to dry so as to produce either a matte or glossy blushed film, and the resultant film is treated with an embossing roller, the pressure exerted by the embossing roller compacts the blushed film and forces the air out, thereby yielding an entirely or partially clear film in the depression formed. by the embossing roller, while allowing the unembossed portions to retain their original blush. As a result, a novel multi-tone embossed coating is obtained, varying from the original blushed color to the combined eflect of the unblushed coating and the surface behind it. If an ordinary blushed film is used, a variation in gloss as well as intone is obtained, while the type of film disclosed in my co-pending application gives merely a color diflerence.
By coloring the film slightly, the blushed film will yield a pastel shade; after embossing, the color will vary from that pastel shade to much deeper tones of the same color.
My invention makes possible the production 01' multi-tone papers by the use of a single coating composition and operation without the need of printing a multiplicity of colors. Not only is the cost lowered, but the quality of the product is improved, since the use of a single coating layer precludes the possibility of lack of adhesion between different coating layers.
Typical examples of my invention are as follows:
. Example I Y Parts by weight SS Nitrocellulose 5 sec. (wet with 30% butyl alcohol) 13.8 Acetone 5.0 Methyl alcohol (C. P.) 74.4 Water A 4.2 Glycerine 2.6
ing roller is heated to facilitate the removal of air from the thermoplastic coating.
Example I! Ingredient: Parts by weight Cellulose compound-- 4 sec. SS Nitrocellulose (wet with The chrome green is dispersed by grinding in the plasticizer on a roller mill.
This produces a finish similar to the last, except the tones are shades of green.- The lacquer may be applied to Cellophane, paper, etc.
Erample III Parts by weight /4 sec. SS Nitrocellulose (wet with 30% butyl alcohol) -19.0 5 sec. SS Nitrocellulose (wet with 30% butyl alcohol) 5.7 Butyl stearate 2.4 Wecoline" 4.3 Acetone 20.6 Toluol 38.0 Xylol 10.0
This lacquer, when applied to paper, gives a very dull finish. When embossed as in Egzample I, glossy, greyish valleys and dull white\ peaks are obtained. Coloring matter added to t lacquer yields pastel dull high lights and arker glossy valleys.
The examples may, of course, be multiplied indefinitely, since any film of plastic material which is opaque by reason or its air content (blushed) may be cleared up by the application or suflicient pressure, with or without heat, to give a novel multi-tone film.
My invention has many possible applications and is particularly adapted for the manufacture of novelty wrapping papers, wallpapers, Cellophane sheeting and the like, although it may be applied to any sort of surface.
What I claim is: I
The method of making a multi-tone article, which comprises treating a base carrying a blushed film of plastic cellulose derivative coating composition, the color of which is whitened due to occlusion of air in the film, and which filmis capable of being compacted by the application of pressure thereto, by the simultaneous application of pressures varying from area to area of contiguous portions 01' the film, the greatest pressure used being sufiicient to force substantial quantities of air out of the film to compact it and thereby deepen the color thereof, and the least pressure used being lnsufiicient to force corresponding quantities of air out of the film, thereby substantially maintaining the original blushed appearance, whereby a multi-toned article is produced having relatively uncompacted portions of lighter color and compacted portions of deeper color.
' JOHN SENECA CUMMlNGS.
US183675A 1938-01-06 1938-01-06 Method of preparing multitone coated articles Expired - Lifetime US2306525A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519660A (en) * 1947-09-06 1950-08-22 Little Inc A Recording material
US2705682A (en) * 1951-05-11 1955-04-05 American Cyanamid Co Method of coloring cellulosic materials by hot embossing
US2880110A (en) * 1954-12-02 1959-03-31 Minnesota Mining & Mfg Heat-sensitive copying-paper
US2927039A (en) * 1957-03-07 1960-03-01 Labelon Tape Co Inc Heat sensitive copying sheet
US2939802A (en) * 1957-11-13 1960-06-07 Uarco Inc Pressure sensitive recording material and method of making same
US2961334A (en) * 1957-06-04 1960-11-22 Little Inc A Positive printing, pressure-sensitive material and method of making it
US3031328A (en) * 1959-11-12 1962-04-24 Ludlow Corp Method and composition for waterresistant recording material
US3122448A (en) * 1960-09-28 1964-02-25 Nashua Corp Translucent electrosensitive recording sheet
US3214274A (en) * 1960-10-19 1965-10-26 Mitsubishi Paper Mills Ltd Manufacture of photographic materials
US3505096A (en) * 1966-05-16 1970-04-07 Inmont Corp Method of producing blush coated fabrics of superior adhesion

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519660A (en) * 1947-09-06 1950-08-22 Little Inc A Recording material
US2705682A (en) * 1951-05-11 1955-04-05 American Cyanamid Co Method of coloring cellulosic materials by hot embossing
US2880110A (en) * 1954-12-02 1959-03-31 Minnesota Mining & Mfg Heat-sensitive copying-paper
US2927039A (en) * 1957-03-07 1960-03-01 Labelon Tape Co Inc Heat sensitive copying sheet
US2961334A (en) * 1957-06-04 1960-11-22 Little Inc A Positive printing, pressure-sensitive material and method of making it
US2939802A (en) * 1957-11-13 1960-06-07 Uarco Inc Pressure sensitive recording material and method of making same
US3031328A (en) * 1959-11-12 1962-04-24 Ludlow Corp Method and composition for waterresistant recording material
US3122448A (en) * 1960-09-28 1964-02-25 Nashua Corp Translucent electrosensitive recording sheet
US3214274A (en) * 1960-10-19 1965-10-26 Mitsubishi Paper Mills Ltd Manufacture of photographic materials
US3505096A (en) * 1966-05-16 1970-04-07 Inmont Corp Method of producing blush coated fabrics of superior adhesion

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