US957196A - Method of making paper and similar material pliable. - Google Patents

Method of making paper and similar material pliable. Download PDF

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Publication number
US957196A
US957196A US51677509A US1909516775A US957196A US 957196 A US957196 A US 957196A US 51677509 A US51677509 A US 51677509A US 1909516775 A US1909516775 A US 1909516775A US 957196 A US957196 A US 957196A
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Prior art keywords
making paper
sugar
pliable
similar material
kgs
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US51677509A
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Ferdinand Evers
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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20Macromolecular organic compounds
    • D21H17/21Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24Polysaccharides
    • D21H17/28Starch

Definitions

  • This invention relates to an improved method of making paper and similar materials pliable, such as paste board, textile materials, tobacco, cork sheets and thin wooden plates.
  • glycerin For the urpose of smoothing papers, textile materlals, ve etable matter and other similar materials or a pretty long time past already, glycerin, technical grape sugar and glucose obtained from starch have been employed. Glycerin is unquestionably suitable or that very purpose; it is, however, very expensive Besides its manufacture, which frequently takes place from rancid or rotten waste-fats, does not qualify it as an article fit for being used in the industries of foodstufls and table-luxuries.
  • Grape sugar or glucose obtained from starch is no suitable means for making paper and other similar materi'alspliable.
  • the paper prepared by grape-sugar or glucose respectively at tains a certain suppleness indeed; if, however, the 'weather is dry, or when the paper is stored up in a dry place, it becomes just as hard and rough as if it had not been prepared at all.
  • This drawback is more particularly noticeable in the case of parchment paper which, as is well known, is frequently prepared with grape-sugar.
  • inverted sugar or fru1tsugar respectively is to be used for making paper pliable.
  • the ingredient of the inverted sugar, which possesses the properties necessary for producing suppleness, is
  • the objects to be supplied thus e, g. the pasteboard, or parchment paper, tobacco-leaves, textile material, thin cork or wood-tables, yarns and other similar materials are saturated with this impregnating liquid, and then these stuifs are allowed to dry in the open air or by means of hot cylinders or calenders respectively. In this way these stuffs are made pliable and prevented from getting moldy with the very same certainty as if they were glycerized.

Landscapes

  • Paper (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)

Description

' FERDINAND EVERS, 0F DUSSELDORF, GERMANY.
METHOD OF MAKING PAPER AND SIMILAR MATERIAL PLIABLE.
957,196. No Drawing;
Specification of Letters Patent. Application filed September 8, 1909: Serial No. 516,775.
Patented May 10, 19140.
To all whom it may concern:
Be it known that I, FERDINAND'EVERS, analytical chemist, a citizen of the German Empire, residing at Stephanienstrasse No. 42, Dusseldorf, in the Province of Rhineland, Prussia, have invented new and useful Improvements in Methods of Making Paper and Similar Material Pliable, of which the following is a specification.
This invention relates to an improved method of making paper and similar materials pliable, such as paste board, textile materials, tobacco, cork sheets and thin wooden plates.
For the urpose of smoothing papers, textile materlals, ve etable matter and other similar materials or a pretty long time past already, glycerin, technical grape sugar and glucose obtained from starch have been employed. Glycerin is unquestionably suitable or that very purpose; it is, however, very expensive Besides its manufacture, which frequently takes place from rancid or rotten waste-fats, does not qualify it as an article fit for being used in the industries of foodstufls and table-luxuries.
Grape sugar or glucose obtained from starch is no suitable means for making paper and other similar materi'alspliable. When the weather is muggy, the paper prepared by grape-sugar or glucose respectively, at tains a certain suppleness indeed; if, however, the 'weather is dry, or when the paper is stored up in a dry place, it becomes just as hard and rough as if it had not been prepared at all. This drawback is more particularly noticeable in the case of parchment paper which, as is well known, is frequently prepared with grape-sugar.
According to the present method, inverted sugar or fru1tsugar respectively is to be used for making paper pliable. The more complete the inversion of the sugar is,that is to say, the smaller is its percentage of unconverted sucrose, the more suitable is it for making paper pliable. The ingredient of the inverted sugar, which possesses the properties necessary for producing suppleness, is
the fruit sugar termed levulose, which is ex-,
ceedingly hygroscopic and, therefore, possesses those qualities on which the suppling operation is principally based. A highly 1nverted inverted sugar has only recently become known and likewise pure levulose or' fruit-sugar. The danger now exists with concentrated solutions of inverted sugar, which do not contain sucrose or only a slight portion of it, that dextrose is crystallized out. This, however, can be prevented by the addition of moderate quantities of salts. Those which are best lit for this purpose are the soluble chlorids, sulfates andacetates of ammonium, of the alkalies and alkaline earths, but also slight quantities of glucose obtained from starch and glycerin can be used for avoiding crystallization.
By way of example one form of o eration according to the new method is escribed hereunder :75 kgs. of inverted sugar are dissolved in 25 kgs. of a hydrated solution of 2.5 kgs. of chlorid ofsodium or chlorid of calcium respectively in 22.5 kgs. of water. Or 90 kgs. of levulose (fruit sugar) are admixed to 10 kgs. of glycerin or 95 k of levulose (fruit sugar) to 5 kgs. of g ucose obtained from starch. According to the degree of suppleness to be obtained, 10, 25, 50 or 75 kgs. of this solution are taken for 100 kgs. of impregnating liquid, by simply intermixing these quantities with a corresponding quantity of water. Hereupon the objects to be supplied, thus e, g. the pasteboard, or parchment paper, tobacco-leaves, textile material, thin cork or wood-tables, yarns and other similar materials are saturated with this impregnating liquid, and then these stuifs are allowed to dry in the open air or by means of hot cylinders or calenders respectively. In this way these stuffs are made pliable and prevented from getting moldy with the very same certainty as if they were glycerized.
I claim Method of making paper and similar materials pliable which consists in mixing a hydrated solution of inverted sugar with an ammonium salt, and saturating said material with the mixture thus obtained.
Signed by me at Barmen, Germany, this 28th day of August 1909.
FERDINAND EVERS. [L. s.]
Witnesses:
O'rro KoNIG, WILLY KLEIN.
US51677509A 1909-09-08 1909-09-08 Method of making paper and similar material pliable. Expired - Lifetime US957196A (en)

Priority Applications (1)

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US51677509A US957196A (en) 1909-09-08 1909-09-08 Method of making paper and similar material pliable.

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US51677509A US957196A (en) 1909-09-08 1909-09-08 Method of making paper and similar material pliable.

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