US1938312A - Method of manufacturing artificial silk filaments - Google Patents

Method of manufacturing artificial silk filaments Download PDF

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Publication number
US1938312A
US1938312A US382576A US38257629A US1938312A US 1938312 A US1938312 A US 1938312A US 382576 A US382576 A US 382576A US 38257629 A US38257629 A US 38257629A US 1938312 A US1938312 A US 1938312A
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US
United States
Prior art keywords
solution
artificial silk
particles
manufacturing artificial
pigment
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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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US382576A
Inventor
Bassett Harry Preston
Torrence James Harold
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.)
TUBIZE CHATILLON Corp
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TUBIZE CHATILLON CORP
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Publication date
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Priority to US382576A priority Critical patent/US1938312A/en
Application granted granted Critical
Publication of US1938312A publication Critical patent/US1938312A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
    • D01F2/08—Composition of the spinning solution or the bath
    • D01F2/12—Addition of delustering agents to the spinning solution

Definitions

  • Our invention relates to the manufacture of artificial silk filaments by a method in which fine particles of an inorganic pigment-like material are thoroughly incorporated with and distributed throughout the mass material of a solution of a cellulose compound preparatory to forming said material into an artificial silk filament by forcing it through a small orifice.
  • the object of our invention is to provide an efiective method for securing a thorough distribution of the pigment-like particles in low viscosity spinning solutions of cellulose compounds, such, for example, as those found in the usual processes of manufacturing artificial silk from viscose and cuprammonium solutions, and in the nitrocellulose and cellulose-acetate processes when so-called wet-spinning methods are employed.
  • This embodiment of my invention therefore consistsin the method of mixing the pigment-like material with a small portion of the cellulosic solution in such manner as to thoroughly wet the particles and this can best be effected by grinding the solution and the particles together and then adding the the mass material of the filament to be prepared with a portion of, for example, a viscose solution, say about five percent of the solution, in such manner as to wet substantially all of the individual particles and then mix the pigmented portion of the solution with the balance of the solution to distribute the pigment-like particles throughout the entire solution.
  • a viscose solution say about five percent of the solution
  • the method of manufacturing artificial silk filaments which comprises thoroughly mixing pigment-like particles with a low viscosity cellulosic solution so as to wet substantially all of the particles with the solution, mixing the mixture so obtained with the bulk of the cellulosic solution from which the filaments are to be spun, whereby the pigment-like particles are incorporated in and widely distributed throughout the cellulosic solution, and thereafter spinning said solution to form artificial silk filaments.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)

Description

Patented Dec. 5, 1933 lTED STATES PATENT OFFICE METHOD OF MANUFACTURING ARTIFICIAL SILK FILAMIENTS tion of Delaware No Drawing. Application July 31, 1929 Serial No. 382,576
4 Claims. (01. 106-40) Our invention relates to the manufacture of artificial silk filaments by a method in which fine particles of an inorganic pigment-like material are thoroughly incorporated with and distributed throughout the mass material of a solution of a cellulose compound preparatory to forming said material into an artificial silk filament by forcing it through a small orifice.
Broadly speaking, such process is described and claimed in U. S. patents of James, A. Singmaster, No. 1,725,742, granted August 20,- 1929, and No. 1,875,894, granted September 6, 1932. In said patents the character of inorganic pigment-like materials adapted for use and tending to produce a filament of a desirable opacity, covering power and luster are set out and certain methods are described for securing-a thorough distribution of the pigment-like particles in the solution and produced filaments.
The object of our invention is to provide an efiective method for securing a thorough distribution of the pigment-like particles in low viscosity spinning solutions of cellulose compounds, such, for example, as those found in the usual processes of manufacturing artificial silk from viscose and cuprammonium solutions, and in the nitrocellulose and cellulose-acetate processes when so-called wet-spinning methods are employed.
We have discovered that a very efiective distribution of the pigment-like particles can be secured and maintained in low viscosity cellulosic solutions by thoroughly mixing the pigmentlike material with a portion of the solution of the cellulose compound in such manner as to wet substantially all of the individual particles with the solution and then introducing this mixture into the bulk of the solution and mixing both portions together. This mixture we have found to be readily effected without such agitation of the bulk of the solution as would tend to break down its viscosity. Even in cellulosic solutions of very low viscosity, the thorough distribution thus obtained is maintained in the solution and in the filaments spun therefrom. -This embodiment of my invention therefore consistsin the method of mixing the pigment-like material with a small portion of the cellulosic solution in such manner as to thoroughly wet the particles and this can best be effected by grinding the solution and the particles together and then adding the the mass material of the filament to be prepared with a portion of, for example, a viscose solution, say about five percent of the solution, in such manner as to wet substantially all of the individual particles and then mix the pigmented portion of the solution with the balance of the solution to distribute the pigment-like particles throughout the entire solution.
Having now described our invention, what we claim as new and desire to. secure by Letters Patent, is:
1. The method of manufacturing artificial silk filaments which comprises thoroughly mixing pigment-like particles with a low viscosity cellulosic solution so as to wet substantially all of the particles with the solution, mixing the mixture so obtained with the bulk of the cellulosic solution from which the filaments are to be spun, whereby the pigment-like particles are incorporated in and widely distributed throughout the cellulosic solution, and thereafter spinning said solution to form artificial silk filaments.
2. The method of manufacturing artificial silk filaments as set forth in claim 1, in which the cellulosic solutions are viscose solutions.
3. The method of manufacturing artificial silk filaments as set forth in claim 1, in which the pigment-like particles are titanium dioxide.
4. The method of manufacturing artificial silk filaments as set forth in claim 1, in which the cellulosic solutions are viscose solutions and in which the pigment-like particles are titanium oxide.
HARRY P. BASSETI. JAMES H. TORRENCE.
mixture thus prepared to the bulk of the'cellulosic
US382576A 1929-07-31 1929-07-31 Method of manufacturing artificial silk filaments Expired - Lifetime US1938312A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598066A (en) * 1947-11-07 1952-05-27 Oscar Kohorn & Co Ltd Method for the production of pigmented rayon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598066A (en) * 1947-11-07 1952-05-27 Oscar Kohorn & Co Ltd Method for the production of pigmented rayon

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