US1498797A - Treatment of vegetable parchment - Google Patents

Treatment of vegetable parchment Download PDF

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Publication number
US1498797A
US1498797A US63418123A US1498797A US 1498797 A US1498797 A US 1498797A US 63418123 A US63418123 A US 63418123A US 1498797 A US1498797 A US 1498797A
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United States
Prior art keywords
parchment
treatment
vegetable parchment
vegetable
paper
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Expired - Lifetime
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Inventor
Hough Arthur
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Individual
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Individual
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Priority to US63418123 priority Critical patent/US1498797A/en
Application granted granted Critical
Publication of US1498797A publication Critical patent/US1498797A/en
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Expired - Lifetime legal-status Critical Current

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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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/06—Vegetable or imitation parchment; Glassine paper
    • 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
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/08—Vegetable parchment
    • 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]
    • Y10T428/31971—Of carbohydrate
    • Y10T428/31993—Of paper

Definitions

  • the present invention relates to improvements in the preparation of parchment paper which is commonly referred to as-vegetable parchment.
  • vegetable parchment is prepared by treating paper with sulfuric acid of a proper strength, and subsequently washing to remove the acid, after which the parchment is dried. After drying the vegetable parchment is somewhat brittle, and if not brittle when first made, it is likely to become brittle on long storage, particularly in very dry rooms.
  • parchment can then be rolled up in the form of rolls or stored in the form of sheets, and does not become brittle by the excessive drying out.
  • simple glycol its polymers would likewise be employed, for instance diethylene glycol, the term ethylene lycol as used in this application is inten ed to cover the polymers as well.
  • the glycol is somewhat hygroscopic and takes up a certain amount of moisture from the atmosphere, retaining the necessary quantity of moisture in the paper at all times to prevent the paper from ecoming brittle owing to excessive dryin ARTHUR HOUGH.

Description

Patented amaze, 1924.
new?
ARTHUR HOUGH, OF SUMMIT, NEW JERSEY.
TREATMENT OF VEGETABLE IPARCHMENT.
Ro Drawing.
To all whom it may concern:
Be it known that ARTHUR HoUcH, a citizen of the United States of America, residing at Summit, in the county of Union and State of New Jersey, has invented certain new and useful Improvements in the Treatment of Vegetable Parchment, of which the following is a specification.
The present invention relates to improvements in the preparation of parchment paper which is commonly referred to as-vegetable parchment.
As is well known, vegetable parchment is prepared by treating paper with sulfuric acid of a proper strength, and subsequently washing to remove the acid, after which the parchment is dried. After drying the vegetable parchment is somewhat brittle, and if not brittle when first made, it is likely to become brittle on long storage, particularly in very dry rooms.
I have found that it is possible to keep vegetable parchment permanently soft, by coating the same with a small quantity of a glycol. For ordinary purposes I prefer to use ethylene glycol, this being a dihydric alcohol which is already well known and which is described in numerous text books of organic chemistry. This material has properties which render it especially suitable for use, in the form of a thin coating, on vegetable parchment. It has a favorable degree of viscosity, can readily be prepared in a very pure condition, and it possesses no injurious effects upon the human system,
which latter properties render it particularly desirable, when the parchment paper is to be used for wrapping food products.
Application filed April 23, 1923. Serial No. 634,181.
For ordinary purposes I find that the ap-. plication of approximately 200 pounds of ethylene glycol to each ton of paper gives very satisfactory results, the same being applied as a particularly uniform coating over one or both sides of the parchment. The
parchment can then be rolled up in the form of rolls or stored in the form of sheets, and does not become brittle by the excessive drying out. It will be understood that in place of the simple glycol, its polymers would likewise be employed, for instance diethylene glycol, the term ethylene lycol as used in this application is inten ed to cover the polymers as well. The glycol is somewhat hygroscopic and takes up a certain amount of moisture from the atmosphere, retaining the necessary quantity of moisture in the paper at all times to prevent the paper from ecoming brittle owing to excessive dryin ARTHUR HOUGH.
Witnesses:
J. F. WELLER, EUGENE Jon.
US63418123 1923-04-23 1923-04-23 Treatment of vegetable parchment Expired - Lifetime US1498797A (en)

Priority Applications (1)

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US63418123 US1498797A (en) 1923-04-23 1923-04-23 Treatment of vegetable parchment

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US1498797A true US1498797A (en) 1924-06-24

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Family Applications (1)

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US63418123 Expired - Lifetime US1498797A (en) 1923-04-23 1923-04-23 Treatment of vegetable parchment

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2851378A (en) * 1954-04-07 1958-09-09 Standard Register Co Ink receptive oil transparentized paper
US5827616A (en) * 1995-07-24 1998-10-27 Sibille Dalle Coated greaseproof paper and process for manufacturing it

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2851378A (en) * 1954-04-07 1958-09-09 Standard Register Co Ink receptive oil transparentized paper
US5827616A (en) * 1995-07-24 1998-10-27 Sibille Dalle Coated greaseproof paper and process for manufacturing it

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