US1879031A - Process of preparing vulcanized fibers - Google Patents

Process of preparing vulcanized fibers Download PDF

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Publication number
US1879031A
US1879031A US367135A US36713529A US1879031A US 1879031 A US1879031 A US 1879031A US 367135 A US367135 A US 367135A US 36713529 A US36713529 A US 36713529A US 1879031 A US1879031 A US 1879031A
Authority
US
United States
Prior art keywords
sulfuric acid
parchmentizing
vulcanized fibers
fibers
paper
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
US367135A
Inventor
Becker Ernst
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Application granted granted Critical
Publication of US1879031A publication Critical patent/US1879031A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
    • D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
    • D06M11/56—Sulfates or thiosulfates other than of elements of Groups 3 or 13 of the Periodic System
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
    • D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts

Definitions

  • a soluble salt which is not decomposed by the sulfuric acid for example, al-- kali metal sulfates, ammonium sulfate, and
  • compositions of the baths in question are not limited thereto:
  • Example 1 T he parchmentizing bath contains: 68% sulfuric acid -2% magnesium sulfate.

Description

Patented Sept. 27, 1932 UNITED STATES PATENT OFFICE I ERNST BECKER, OF HAMBURG, GERMANY, ASSIGNOR TO I. G. FARBENINDUSTRIE- AKTIENGESELLSGHAET, OF FRANKFORfIP-ON-THE-MAIN, GERMANY, A CORPORATION OF GERMANY PROCESS OF PREPARING VULGANIZED FIBERS No Drawing. Application filed May 29, 1929, Serial No. 367,135, and in Germany June 4, 1928.
addition of a soluble salt which is not decomposed by the sulfuric acid, for example, al-- kali metal sulfates, ammonium sulfate, and
' magnesium sulfate. These salts counteract the dispersing action of the sulfuric acid; the solution of the paper proceeds much more slowly, which enables the paper to be rolled into a fiber plate on the rollers. The action of the soluble salts, such as for example sulfates, increases with the valency of the base, apart from the quantity added. It is of particular value that the hydration or parchmentizing of the cellulose can in this manner be varied to a far reaching extent, that is to say vulcanized fibers and the like of homogeneous character and high specific gravity and likewise more fibrous, flexible fiber of low specific gravity can be manufactured as desired.
Furthermore, for the manufacture of vulcanized fibers, parchment paper and the like by the continuous process on the so-called 'parchmentizing machine an acid with the advulcanized fibers and the like, the step which comprises parchmentizing paper with sulfuric acid to which a sulfate soluble in sulfuric acid has been added. I
2. In the process for the manufacture of vulcanized fibers and the like the step which comprises parchmentizing paper with sulfuric acid to which 0.5 to 5% of a sulfate soluble in sulfuric acid has been added.
3. In the process for the manufacture of vulcanized fibers and the like the step which comprises parchmentizing paper with sulfuric acid to which ammonium sulfate has been added.
4. In the process for the manufactureof vulcanized fibers and the like the step which comprises parchmentizing paper with sulfuric acid to which 4 to 5% of ammonium sulfate has been added.
In testimony whereof I have hereunto set my hand.
ERNST BECKER.
ditions specified can be used with advantage,
"especially when it is desired to weaken the action of the sulfuric acid, for example, in
piliie case of certain wood pulp papers and the The invention is illustrated by some of the compositions of the baths in question, but is not limited thereto:
Example 1 .T he parchmentizing bath contains: 68% sulfuric acid -2% magnesium sulfate.
E wample 2.The parchmentizing bath contains: 70% sulfuric acid 45% ammonium sulfate. I claim: 1. In the process for the manufacture of
US367135A 1928-06-04 1929-05-29 Process of preparing vulcanized fibers Expired - Lifetime US1879031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE312998T 1928-06-04

Publications (1)

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US1879031A true US1879031A (en) 1932-09-27

Family

ID=31894640

Family Applications (1)

Application Number Title Priority Date Filing Date
US367135A Expired - Lifetime US1879031A (en) 1928-06-04 1929-05-29 Process of preparing vulcanized fibers

Country Status (2)

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US (1) US1879031A (en)
GB (1) GB312998A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541457A (en) * 1947-05-23 1951-02-13 Alrose Chemical Company Cellulosic textile shrinkage control and crease resistance with inhibited tenderizing action
US2603551A (en) * 1948-07-27 1952-07-15 Courtaulds Ltd Water soluble cellulosic yarn produced by reacting cellulose, sulphuric acid, cyanamide, and a metal sulfate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541457A (en) * 1947-05-23 1951-02-13 Alrose Chemical Company Cellulosic textile shrinkage control and crease resistance with inhibited tenderizing action
US2603551A (en) * 1948-07-27 1952-07-15 Courtaulds Ltd Water soluble cellulosic yarn produced by reacting cellulose, sulphuric acid, cyanamide, and a metal sulfate

Also Published As

Publication number Publication date
GB312998A (en) 1930-07-24

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