US1746888A - Coated paper - Google Patents

Coated paper Download PDF

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Publication number
US1746888A
US1746888A US2170025A US1746888A US 1746888 A US1746888 A US 1746888A US 2170025 A US2170025 A US 2170025A US 1746888 A US1746888 A US 1746888A
Authority
US
United States
Prior art keywords
paper
coated
coated paper
folded
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 - Lifetime
Application number
Inventor
Jr Gustavus J Esselen
Reed P Rose
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.)
General Rubber LLC
Original Assignee
Gen Rubber 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
Priority to US18312D priority Critical patent/USRE18312E/en
Application filed by Gen Rubber Co filed Critical Gen Rubber Co
Priority to US2170025 priority patent/US1746888A/en
Application granted granted Critical
Publication of US1746888A publication Critical patent/US1746888A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00—Compositions of natural rubber
    • C08L7/02—Latex
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/346—Clay
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00—Compositions of proteins; Compositions of derivatives thereof
    • C08L89/005—Casein
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L93/00—Compositions of natural resins; Compositions of derivatives thereof
    • C08L93/02—Shellac
    • 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
    • Y10S524/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S524/925—Natural rubber compositions having nonreactive materials, i.e. NRM, other than: carbon, silicon dioxide, glass titanium dioxide, water, hydrocarbon or halohydrocarbon
    • 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
    • Y10T428/31765—Inorganic-containing or next to inorganic-containing
    • 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
    • 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]
    • Y10T428/31826—Of natural rubber
    • Y10T428/31841—Next to cellulosic
    • 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]
    • Y10T428/31844—Of natural gum, rosin, natural oil or lac
    • Y10T428/31848—Next to cellulosic

Definitions

  • Coated papers are ordinarily employed in instances where the outline of a printed picture or of type is desired to have great clearness.
  • the requisite of such paper is that its surface should resist the absorption of ink andcolor, and it is also necessary for the coat ed paper to have a high resistance to Wear and to tearing even after the paper has been flexed a great number of times.
  • the object of the present invention is to provide a coated paper which has a higher resistance to ink absorption than the papers heretofore produced and Which has more strength and better flexing properties, while at the same time having a high degree of adhesion between the coating and the paper itself.
  • Another object of the invention is to provide a coated paper which has been prepared by coating paper with a mixture of a suspension of rubber in water and a filling material, together with an adhesive of the resin type which has been rendered dispersable in water.
  • the papers of the present invention resist absorption or blotting of ink 5 to 15% greater than other coated papers. In addition they are superior to the ordinary coated papers in resistance to Wear.
  • As an index to the in-' crease in strength of paper the following data determined by the folding test was obtained on papers of equal weights:
  • the rubber content may be reduced to if desired.
  • Other finely divided mineral substances such as satin white, blanc fixe, Paris white and other products may be used instead of the clay. Generally speaking better results may be obtained when the total quantity of rubber solids plus other binder is present in amounts greater than 12% of the weight of the clay or other filler, although this may vary somewhat depending upon the kind of clay.
  • Material for carrying out subsequent vulcanization may be added to the coating mixture or may be applied before, during or 15 after coating, and vulcanization carried out, preferably below 200 F.
  • Other resins or lacs of the same general nature as shellac may be employed, and the invention also compre hends the use of other dispersion agents for the shellac.
  • Borax however, is quite satisfactory and possesses the additional advantage of being relatively inexpensive.
  • a coated paper consisting of paper coated with a mixture of rubber latex and filling material including a shellac product and a dispersing agent therefor.
  • a coated paper consisting of paper coated with a mixture of rubber latex and filling material including a borated shellac.
  • a coated paper consisting of paper coated with a mixture comprisin rubber latex, clay, and shellac treated with rax.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)

Description

Patented Feb. 11, 1930 UNITED STATES PATENT OFFICE GUSTAVUS J'. ESSELEN, JR., OF SWAMPSCOTT, MASSACHUSETTS, AND REED P. ROSE, OF JACKSON HEIGHTS, NEW YORK, ASSIGNORS TO GENERAL RUBBER COMPANY, OF NEW YORK, N. Y., A. CORPORATION OF NEW JERSEY COATED PAPER HEISSUED No Drawing. Original application filed March 19, 1924, Serial No. 700,426. Divided and this application filed April 8, 1925.
Coated papers are ordinarily employed in instances where the outline of a printed picture or of type is desired to have great clearness. The requisite of such paper is that its surface should resist the absorption of ink andcolor, and it is also necessary for the coat ed paper to have a high resistance to Wear and to tearing even after the paper has been flexed a great number of times. It has been the practice to treat the surfaces of suitable papers with mixtures of fine clays or other inert mineral substances with or Without a pigment, and with an adhesive. Casein has ordinarily been employed as an -adhesive, and is usually preferred over glue and starch. Papers made with such combinations have been used with some success, but are ofttimes expensive and not infrequentlytoo low in resistance to the penetration of ink and color.
The object of the present invention is to provide a coated paper which has a higher resistance to ink absorption than the papers heretofore produced and Which has more strength and better flexing properties, while at the same time having a high degree of adhesion between the coating and the paper itself. Another object of the invention is to provide a coated paper which has been prepared by coating paper with a mixture of a suspension of rubber in water and a filling material, together with an adhesive of the resin type which has been rendered dispersable in water.
Serial No. 21,700.
pounds of borax. With this 100 lbs. of finely divided clay are carefully mixed. To the re sulting mixture suflicient rubber latex, containing approximately 1% of ammonia as a preservative, is added to produce 10 lbs. of rubber solids in the mixture. The resulting mixture is then applied in the usual manner to paper, to produce a coated paper.
The appearance of the coated papers produced by the above processes is similar to the appearance of other commercial coated papers, but their properties are quite different.
The papers of the present invention resist absorption or blotting of ink 5 to 15% greater than other coated papers. In addition they are superior to the ordinary coated papers in resistance to Wear. As an index to the in-' crease in strength of paper the following data determined by the folding test was obtained on papers of equal weights:
Folding $88:
Number of times folded before tearing occurred Bugger Other com nents w 8 m N at calendered Calendered Machine Cross Machine Cross None 81?; g:::::::: I: Folded 13 times Folded 6 times Folded 33 times.-- Folded 6 times 10 mu..- ggg fg ggl jffgf fzz Folded as times.--. Folded 21 times-- Folded as times.--.- Folded 31.5 times This application is a division of Serial No. 700,426, filed March 19, 1924.
The above folding data was obtained according to standard procedure on a Schopper With a preferred example in mind, but not machine.
The rubber content may be reduced to if desired. Other finely divided mineral substances such as satin white, blanc fixe, Paris white and other products may be used instead of the clay. Generally speaking better results may be obtained when the total quantity of rubber solids plus other binder is present in amounts greater than 12% of the weight of the clay or other filler, although this may vary somewhat depending upon the kind of clay.
Material for carrying out subsequent vulcanization may be added to the coating mixture or may be applied before, during or 15 after coating, and vulcanization carried out, preferably below 200 F. Other resins or lacs of the same general nature as shellac may be employed, and the invention also compre hends the use of other dispersion agents for the shellac. Borax, however, is quite satisfactory and possesses the additional advantage of being relatively inexpensive.
Having thus described our invention, what we claim and desire to protect by Letters Patent is:
1. A coated paper consisting of paper coated with a mixture of rubber latex and filling material including a shellac product and a dispersing agent therefor.
2. A coated paper consisting of paper coated with a mixture of rubber latex and filling material including a borated shellac.
3. A coated paper consisting of paper coated with a mixture comprisin rubber latex, clay, and shellac treated with rax.
Signed at Boston, county of Sufi'olk, State of Massachusetts, this 2nd day of April, 1925.
GUSTAV'US J. ESSELEN, JR.
Signed at New York, county of New York,
40 State of New York, this 21st day ofMarch,
REED P. ROSE.
US2170025 1924-03-19 1925-04-08 Coated paper Expired - Lifetime US1746888A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US18312D USRE18312E (en) 1924-03-19 And seed p
US2170025 US1746888A (en) 1924-03-19 1925-04-08 Coated paper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70042624A 1924-03-19 1924-03-19
US2170025 US1746888A (en) 1924-03-19 1925-04-08 Coated paper

Publications (1)

Publication Number Publication Date
US1746888A true US1746888A (en) 1930-02-11

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Family Applications (2)

Application Number Title Priority Date Filing Date
US18312D Expired USRE18312E (en) 1924-03-19 And seed p
US2170025 Expired - Lifetime US1746888A (en) 1924-03-19 1925-04-08 Coated paper

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US18312D Expired USRE18312E (en) 1924-03-19 And seed p

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875054A (en) * 1956-05-24 1959-02-24 Eastman Kodak Co Preparation of coatings of improved internal strength

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875054A (en) * 1956-05-24 1959-02-24 Eastman Kodak Co Preparation of coatings of improved internal strength

Also Published As

Publication number Publication date
USRE18312E (en) 1932-01-05

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