US2255912A - Hectograph blanket having a copy mass containing a small percentage of glycol type or sorbitol type solvent - Google Patents
Hectograph blanket having a copy mass containing a small percentage of glycol type or sorbitol type solvent Download PDFInfo
- Publication number
- US2255912A US2255912A US342447A US34244740A US2255912A US 2255912 A US2255912 A US 2255912A US 342447 A US342447 A US 342447A US 34244740 A US34244740 A US 34244740A US 2255912 A US2255912 A US 2255912A
- Authority
- US
- United States
- Prior art keywords
- hectograph
- copy
- glycol
- sorbitol
- blanket
- 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 - Lifetime
Links
Images
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
- B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
- B41M5/06—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet using master sheets coated with jelly-like materials, e.g. gelatin
- B41M5/08—Sheet materials therefor
-
- 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
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/908—Impression retention layer, e.g. print matrix, sound record
-
- 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
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/909—Resilient layer, e.g. printer's blanket
-
- 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
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31725—Of polyamide
- Y10T428/31768—Natural source-type polyamide [e.g., casein, gelatin, etc.]
- Y10T428/31772—Next to cellulosic
- Y10T428/31775—Paper
Definitions
- the invention relates to hectograph blankets.
- An object of the invention is to provide a hectograph blanket having a copy-mass which gives exceptional copy strength and good runnitnig qualities.
- Suitable glycol type solvents include ethylene glycol, diethylene glycol, diethylene glycol-monoethyl ether, and diethyleneglycol monobutyl ether. Sorbitol is also suitable. The preferred material is ethylene glycol. I
- the masses containing such substances do not bond as well to linseed oil and other drying oils as is ordinarily desirable. I have discovered, however, that a very satisfactory bond can be obtained and therefore a highly satisfactory hectograph blanket when the hectograph mass containing the glycol type solvent or sorbitol is applied to a backing covered with a layer containing a wetting agent as is disclosed in the application
- Suitable wetting agents are the sulfonated naphthenes, preferably when used in admixture with cellulose esters.
- Suitable wetting agents are lauryl sulfate, sulfonated castor oil, sulfated fatty acid amides, secondary alcohol sulfates, and alkyl aryl sulfonates.
- suitable wetting agents hydrophobic in character, with the addition of one or more groups of a strongly hydrophilic nature which act as solubilizing groups for the compound.
- Fig. l is a sectional view of a hectograph blanket illustrating one embodiment of my invention.
- the reference character I is a gelatinous copy mass containing about one percent ethylene glycol.
- This copy mass I is secured by means of a film or layer 2, comprising a wetting agent, to a flexible backing consistin of paper, cloth, or other fabric base 4 coated on both sides with a relatively non-adhesive cellulose ester lacquer 3 and 5.
- the bonding layer 2 comprises one of the usual cellulose derivative lacquers containing a wetting agent having a hydrophobic long .chain aliphatic radical attached to a hydrophilic-803R radical in which R il's a hydrogen or metal.
- Example 30 parts by weight of gelatin or 225 bloom is soaked in parts by weight of water for 1 hr.;
- ethylene glycol 7 parts by weight is mixed with 300 parts by weight of glycerin, the mixture are composed of a hydrocarbon chain which 'is' heated to C. and then added to the swelled gelatin with agitation.
- a hectograph blanket comprising a backing
- a hectograph blanket'comprislng'a backing :a copy mass secured to one side of the backing and cellulose ester lacquer on the other side of said backing, said copy mass comprising gelatin,
- a hectograph blanket comprising a backing
- a hectograph blanket comprising a backing, a copy mass secured to one side of the backingand, cellulose ester lacquer on the other side of said backing, said copy mass comprising gelatin, glycerin, water, and from one-half to five percen of ethylene glycol.
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
Sept. 16, 1941. w J CHAMPION 2,255,912
HEGTOGRAPH BLANKET HAVING A COPY MASS CONTAINING A SMALL PERCENTAGE OF GLYCOL TYPE OR SORBITOL TYPE SOLVENT Filed June 26, 1940 IN VENTOR. [WI/2'02?! (ital/ 02022, BY L of Robert C. Bour, Serial No. 313,191.
Patented Sept. 16, 194i UNITED STATES PATENT OFFICE I HECTOGR-APH BLANKET HAVING A COPY MASS CONTAINING A SMALL PERCENTAGE OF GLYCOL OR SOBBITOL TYPE SOLVENT William 1. Champion, Bcrwyn, Ill.,assignor to Ditto, Incorporated, Chicago, 111., a corporation of West Virginia Application June 26, 1940, Serial No. 342,447
Claims.
The invention relates to hectograph blankets.
An object of the invention is to provide a hectograph blanket having a copy-mass which gives exceptional copy strength and good runnitnig qualities.
I have discovered that the inclusion of a very small amount of a glycol type solvent or sorbitol in an ordinary glue or gelatin hectograph mass greatly enhances the brightness of the initial copies without any deleterious effect on the toughness or on the running characteristics.
Quantities of from one-half to five percent, and
cent, which might be expected. to give enhanced copy strength, are unsuitable for many hectograph blankets because they cause partial dissolution and softening of the cellulose ester lacquer commonly used in backings for hectograph blankets.
Suitable glycol type solvents include ethylene glycol, diethylene glycol, diethylene glycol-monoethyl ether, and diethyleneglycol monobutyl ether. Sorbitol is also suitable. The preferred material is ethylene glycol. I
Hectograph masses containing the above materials in proportions of from one-half to five percent, and preferably one-half to two, percent, require much less conditioning than other hectograph masses of similar copy strength. However, the masses containing such substances do not bond as well to linseed oil and other drying oils as is ordinarily desirable. I have discovered, however, that a very satisfactory bond can be obtained and therefore a highly satisfactory hectograph blanket when the hectograph mass containing the glycol type solvent or sorbitol is applied to a backing covered with a layer containing a wetting agent as is disclosed in the application Suitable wetting agents are the sulfonated naphthenes, preferably when used in admixture with cellulose esters. Other suitable wetting agents are lauryl sulfate, sulfonated castor oil, sulfated fatty acid amides, secondary alcohol sulfates, and alkyl aryl sulfonates. In general suitable wetting agents hydrophobic in character, with the addition of one or more groups of a strongly hydrophilic nature which act as solubilizing groups for the compound. v
The invention is further illustrated in conjunction witlrthe accompanying drawing, in which Fig. l is a sectional view of a hectograph blanket illustrating one embodiment of my invention.
Referring to Fig. 1, the reference character I is a gelatinous copy mass containing about one percent ethylene glycol. This copy mass I is secured by means of a film or layer 2, comprising a wetting agent, to a flexible backing consistin of paper, cloth, or other fabric base 4 coated on both sides with a relatively non-adhesive cellulose ester lacquer 3 and 5. In the preferred embodiment of the invention, the bonding layer 2 comprises one of the usual cellulose derivative lacquers containing a wetting agent having a hydrophobic long .chain aliphatic radical attached to a hydrophilic-803R radical in which R il's a hydrogen or metal.
o more clearly set forth the practice in accordance with the invention and to more specifically point out the nature of the produce and process contemplated thereby, a specific illustrated example is hereinafter set forth, it being understood that this example'illustrates one embodiment which as given satisfactory results and is not int ded to restrict the invention thereto.
Example 30 parts by weight of gelatin or 225 bloom is soaked in parts by weight of water for 1 hr.;
7 parts by weight of ethylene glycol is mixed with 300 parts by weight of glycerin, the mixture are composed of a hydrocarbon chain which 'is' heated to C. and then added to the swelled gelatin with agitation. The colloidal solution so formed'is then applied to -a backing which is coated with a cellulose ester lacquer containing a sulfonated naphthene.
While there have been shown and described certain-embodiments of the invention, it is to be understood that it is capable of many modifications. Changes, therefore, may be'made without departing from the spirit and scope of the invention as described in the appended .claims, in
which it is the intention to claim all novelty inherent in the invention as broadly as possible, in view of the prior art. g
I claim:
'1. ,A hectograph blanket comprising a backing,
a copy mass secured to one side of the backing and cellulose ester lacquer on the other side ofiglycerin, water, and from one-half to five percent of a substance selected from the group consisting of glycols, glycol ethers, and sorbitol.
2. A hectograph blanket comprising a backing,
a copy mass secured to one side of the backing and cellulose ester lacquer on the other side oi! said backing, said copy mass comprising gelatin, glycerin, water, and from one-half to five percent of a glycol. j
, 3. A hectograph blanket'comprislng'a backing, :a copy mass secured to one side of the backing and cellulose ester lacquer on the other side of said backing, said copy mass comprising gelatin,
I 4; A hectograph blanket comprising a backing,
a copy mass secured to one side of the backing and cellulose ester lacquer on the other side of glycerin, water, and from one-half to five per- 15 cent of a glycol ether.
said backin .said copy mass comprising gelatin, glycerin, water, and from one-half to five percent of sorbitol. 5. A hectograph blanket comprising a backing, a copy mass secured to one side of the backingand, cellulose ester lacquer on the other side of said backing, said copy mass comprising gelatin, glycerin, water, and from one-half to five percen of ethylene glycol.
WILLIAM J.'CHAMPION.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US342447A US2255912A (en) | 1940-06-26 | 1940-06-26 | Hectograph blanket having a copy mass containing a small percentage of glycol type or sorbitol type solvent |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US342447A US2255912A (en) | 1940-06-26 | 1940-06-26 | Hectograph blanket having a copy mass containing a small percentage of glycol type or sorbitol type solvent |
Publications (1)
Publication Number | Publication Date |
---|---|
US2255912A true US2255912A (en) | 1941-09-16 |
Family
ID=23341871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US342447A Expired - Lifetime US2255912A (en) | 1940-06-26 | 1940-06-26 | Hectograph blanket having a copy mass containing a small percentage of glycol type or sorbitol type solvent |
Country Status (1)
Country | Link |
---|---|
US (1) | US2255912A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2616812A (en) * | 1948-03-22 | 1952-11-04 | Ditto Inc | Hectograph blanket |
US3137605A (en) * | 1960-02-04 | 1964-06-16 | Ralph W Buetow | Thermographic method for marking photographs |
-
1940
- 1940-06-26 US US342447A patent/US2255912A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2616812A (en) * | 1948-03-22 | 1952-11-04 | Ditto Inc | Hectograph blanket |
US3137605A (en) * | 1960-02-04 | 1964-06-16 | Ralph W Buetow | Thermographic method for marking photographs |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2083372A (en) | Sympathetic ink | |
US2255912A (en) | Hectograph blanket having a copy mass containing a small percentage of glycol type or sorbitol type solvent | |
US2385613A (en) | Inks | |
US1606217A (en) | Duplicating | |
US2213643A (en) | Coated fibrous sheet materials | |
US1631265A (en) | Adhesive | |
US2251647A (en) | Sandblasting stencil | |
US2426935A (en) | Hectograph blanket | |
US2279604A (en) | Process for producing copying paper | |
US2393668A (en) | Transparent stencil sheet material | |
US2052884A (en) | Process for removing fibrous layers from surfaces | |
US1990811A (en) | Coating composition | |
US2247349A (en) | Bright copy hectograph duplication | |
DE964628C (en) | Process for the production of self-adhesive sheets or tapes | |
US2119509A (en) | Coated paper | |
US1997A (en) | Improvement in the mode of rendering fabrics water-proof | |
US1629259A (en) | Waterproof abrasive fabric | |
US2240032A (en) | Hectograph blanket having a wetting type bonding agent | |
US2109471A (en) | Adhesive | |
US1642766A (en) | Waterproof abrasive fabric and method of making the same | |
US2450072A (en) | Paint paste | |
US1244188A (en) | Stencil-sheet. | |
US2372355A (en) | Hectograph blanket | |
US2260506A (en) | Hectograph blanket having an acidic bonding agent | |
US1591001A (en) | Sheet abrasive material |