US523509A - Jules pieree arsene blaye - Google Patents

Jules pieree arsene blaye Download PDF

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Publication number
US523509A
US523509A US523509DA US523509A US 523509 A US523509 A US 523509A US 523509D A US523509D A US 523509DA US 523509 A US523509 A US 523509A
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blaye
arsene
jules
pieree
alum
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Definitions

  • This invention is designed to clean ramie and the like and reduce it to a fiber by removing the pellicles on the stem and which adhere to the fiber and by removing also the gums or like elements.
  • the present improvement in the stripping of China-grass, hemp or flax consists in the addition of alum to the alkaline baths used for that purpose.
  • the addition of alum causes a greater solidity and a greater coherence of the fibers of the plant upon the stem and makes them easily removable from said stem by the hand in such cohesive state.
  • Y I preferably use for the stripping, a bath consisting of one hundred liters of water, ten kilograms slacked lime and two and one-half kilograms carbon ate of soda to which two kilograms of alum are added.
  • the alum is first dissolved in water of about 15 centigrade which is afterward filtered to remove impurities and added to the bath.
  • the bath is put into a tub of forged or cast iron and is heated; as soon as it commences to boil the stems of the China grass, hemp or flax, no matter whether green or dry are dipped into the same; at a temperature of from 95 to 100 centigrade; the China grass must remain in it about thirty-five minutes, the flax about twenty minutes and the hemp about fifteen minutes. Afterward the stems are taken out and put into clean, lukewarm water.
  • the aid of a piece of linen by passing the stems between the fingers and the cohering fibers can be stripped from the stem, by means of the hand, without further washing.
  • the fibers retain their cohesion and after being dry are ready for further working.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Biological Treatment Of Waste Water (AREA)

Description

UNITED STATES PATENT OFFICE.
JULES PIERRE ARSENE BLAYE, OF PARIS, FRANCE.
PROCESS OF REDUCING RAMIE OR LIKE MATERIAL TO FIBER.
SPECIFICATION forming part of Letters Patent No. 523,509, dated July 24, 1894.
Application filed April 21, 1892. $erial No.430,125. (N0 specimens.) Patentedin France November 29, 1890, No. 209.889 in 7 Germany March 6,1891,No. 60,433, and in England August 1, 1891, No. 13,072.
To aZZ whom it may concern:
Be it known that 1, Jonas PIERRE ARSENE BLAYE, a citizen of the French Republic, residing at Paris, in the Department of the Seine, France, have invented an Improved Process of Reducing Ramie or Like Material to Fiber, (for which I have received the following Letters Patent: in France November 29, 1890, No. 209,889; in Great Britain August 1, 1891, No. 13,072, and in Germany March 6, 1891, No. 60,433,) of which the following is a specification.
This invention is designed to clean ramie and the like and reduce it to a fiber by removing the pellicles on the stem and which adhere to the fiber and by removing also the gums or like elements.
The present improvement in the stripping of China-grass, hemp or flax, consists in the addition of alum to the alkaline baths used for that purpose. The addition of alum causes a greater solidity and a greater coherence of the fibers of the plant upon the stem and makes them easily removable from said stem by the hand in such cohesive state.
Y I preferably use for the stripping, a bath consisting of one hundred liters of water, ten kilograms slacked lime and two and one-half kilograms carbon ate of soda to which two kilograms of alum are added. The alum is first dissolved in water of about 15 centigrade which is afterward filtered to remove impurities and added to the bath. The bath is put into a tub of forged or cast iron and is heated; as soon as it commences to boil the stems of the China grass, hemp or flax, no matter whether green or dry are dipped into the same; at a temperature of from 95 to 100 centigrade; the China grass must remain in it about thirty-five minutes, the flax about twenty minutes and the hemp about fifteen minutes. Afterward the stems are taken out and put into clean, lukewarm water. The
outer skin can now easily be removed with.
the aid of a piece of linen by passing the stems between the fingers and the cohering fibers can be stripped from the stem, by means of the hand, without further washing. The fibers retain their cohesion and after being dry are ready for further working.
The fact that the fibers can be stripped while in perfect cohesion can be explained by the well known property of the alum, to coagulate tan waste substances, especially tan-' As the fibers of China grass, hemp and The hereinbefore described process of treat ing ramie and the like, consisting in subjecting said material to an alkaline bath containing alum, substantially as described.
In witness whereof I have hereunto set my hand in presence of two witnesses.
JULES PIERRE ARSENE BLAYE.
Witnesses RoBT. M. HOOPER, J ULES FAYOLTY.
US523509D Jules pieree arsene blaye Expired - Lifetime US523509A (en)

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