US1998344A - Paper making process - Google Patents

Paper making process Download PDF

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Publication number
US1998344A
US1998344A US714198A US71419834A US1998344A US 1998344 A US1998344 A US 1998344A US 714198 A US714198 A US 714198A US 71419834 A US71419834 A US 71419834A US 1998344 A US1998344 A US 1998344A
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United States
Prior art keywords
ounces
paper making
making process
wood
digester
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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
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US714198A
Inventor
Thomas Robert
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Individual
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Individual
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Priority to US714198A priority Critical patent/US1998344A/en
Application granted granted Critical
Publication of US1998344A publication Critical patent/US1998344A/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
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/006—Pulping cellulose-containing materials with compounds not otherwise provided for

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  • Paper (AREA)

Description

' Patented Apr. 16, 1935 UNITED STATES PAPER MAKING PROCESS Robert Thomas, Lake, Miss.
No Drawing. Application March 5, 1934, Serial No. 714,198
4 Claims.
This invention relates to paper making and particularly to a process and composition valuable in making paper from various woods.
One of the advantages of my invention lies 5 in the fact that about 17 per cent more fibre is obtained by using my process than can be obtained by the well-known soda process.
Other advantages will appear to those skilled in the artfrom reading the following specifications. I
In making paper according to the process of my invention I find that the following ingredients are advantageously used and in the proportions indicated, namely:
5 gallons of caustic soda liquor (8 degrees Baum) 14 pounds of green wood (chipped) 2 ounces of pulverized borax 2 ounces of granulated ammonium chloride 2 ounces of oxalic acid 1% ounces of potato starch 1 ounces of sodium sulphate The process of using the mentioned ingredicuts consists in mixing the caustic soda liquor with the borax, ammonium chloride, oxalic acid, potato starch and sodium sulphate, and then pouring the mixture into a digester containing thewood. The mentioned contents of the digester are cooked from two and one-half to three hours at a working steam pressure of 125 pounds. After the wood is cooked the liquor is drawn ofi from the fibre and put through a reclaiming process.
What is claimed is:
1. A mixture for the purpose mentioned, said 5 mixture comprising caustic soda liquor, wood, borax, ammonium chloride, oxalic acid, potato starch and sodium sulphate.
2. A mixture for the purpose mentioned, said mixture comprising the following ingredients in 10 the proportions indicated: 5 gallons caustic soda liquor (about 8 degrees Baum), 14 pounds of wood, 2 ounces of pulverized borax, 2 ounces of ammonium chloride, 2 ounces of oxalic acid, 1 ounces of potato starch, and 1%; ounces of sodium 15 sulphate. Y
3. The process comprising mixing caustic soda liquor with borax, ammonium chloride, oxalic acid, potato starch and sodium sulphate, placing these ingredients and a quantity of wood in a 20 digester, cooking the contents of the digester with steam at high pressure.
4. The process comprising mixing caustic-soda liquor with borax, ammonium chloride, oxalic acid, potato starch and sodium sulphate, placing 25 these ingredients and a quantity of wood in a digester, cooking the contents of the digester with steam at high pressure, and separating the resultant wood pulp from the liquid.
ROBERT THOMAS.
US714198A 1934-03-05 1934-03-05 Paper making process Expired - Lifetime US1998344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US714198A US1998344A (en) 1934-03-05 1934-03-05 Paper making process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US714198A US1998344A (en) 1934-03-05 1934-03-05 Paper making process

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US1998344A true US1998344A (en) 1935-04-16

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US714198A Expired - Lifetime US1998344A (en) 1934-03-05 1934-03-05 Paper making process

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536047A (en) * 1945-07-27 1951-01-02 Jefferson L Eskrldge Alkaline digestion of cottonseed hull bran
US2536046A (en) * 1945-07-17 1951-01-02 Jefferson L Eskridge Alkaline digestion of cottonseed hulls
US2536045A (en) * 1945-07-17 1951-01-02 Jefferson L Eskridge Producing alpha cellulsoe from cottonseed hull fibers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536046A (en) * 1945-07-17 1951-01-02 Jefferson L Eskridge Alkaline digestion of cottonseed hulls
US2536045A (en) * 1945-07-17 1951-01-02 Jefferson L Eskridge Producing alpha cellulsoe from cottonseed hull fibers
US2536047A (en) * 1945-07-27 1951-01-02 Jefferson L Eskrldge Alkaline digestion of cottonseed hull bran

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