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
  • D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
  • D01F11/02—Chemical after-treatment of artificial filaments or the like during manufacture of cellulose, cellulose derivatives, or proteins
• • 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
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
  • Y10T428/2913—Rod, strand, filament or fiber
  • Y10T428/2922—Nonlinear [e.g., crimped, coiled, etc.]
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
  • Y10T428/2913—Rod, strand, filament or fiber
  • Y10T428/2933—Coated or with bond, impregnation or core
  • Y10T428/2964—Artificial fiber or filament
  • Y10T428/2965—Cellulosic

Definitions

• Our present invention relates to wool-like artificial fibers and to a process of making same.
• we 30 treat wet artificial fibers which are (depending on the spinning process used) freed from metallic compounds, acids or sulfur and may be bleached and washed, with organic liquids miscible with water.
• copper silk or copper-silk like fibers are particularly suitable for our present process.
• the latter may be obtained by processes difierent from the copper-silk process, and are distinguished in a wet state, similar to the copper-silk itself, by a 40 high affinity to substantive dyestuffs and a small affinity to basic dyestuffs.
• This drying process is advantageously carried out with a fibrous material newly spun, not yet being dried, with an organic liquid easy to be re- 45 covered, at a relatively low temperature, especially room temperature, and to such a degree that the treated fibers still contain the so-called molecular water usually present in commercial brands.
• the new process runs in a very simple way especially as some complicated operations necessary in the processes, hitherto used, that is, washing, soaping and so on, may be dispensed with 55 and simultaneously with the drying operation In Germany January 1'7,
• the new fibers produced by our process are distinguished by a remarkable softness, a warm touch and a crepe and curly form. These properties render them similar to animal fibers such as wool or natural silk in as high a degree as unknown hitherto. They show furthermore useful values of elasticity and strength, especially a favourable elasticity.
• Example 1 Newly spun copper-silk which is entirely freed from copper and acids is introduced, immediately after being centrifugated or pressed, into a sufflcient amount of alcohol (say of 95% strength). Then it is taken out of the alcohol bath, advantageously centrifugated and freed from the remaining alcohol by an aftertreatment with for instance carbon tetrachloride or ether. The solvent last used is removed from the fibers by evaporation and may be recoverd.
• alcohol say of 95% strength
• the fibers thus obtained show the aforesaid properties.
• This process may be used with the same success when the fibers are continuously spun.
• Example 2 Wet copper silk of the like state of manufacture as that used in Example 1 is treated with acetone and then with carbon tetrachloride. These solvents may be applied successively or according to a counter-current process. In order to obtain special effects the last portion of the solvent may be mixed with suitable agents, for
• Example 3 Newly spun cellulose ribbon consisting of a great number of single filaments of for instance copper silk, immediately after having passed the usual cold or hot treating baths, is pressed, centrifugated or squeezed in order to free it mechanically from Water. Then it is introduced into a bath of a low content of alcohol (say 30%). From the said bath the fiber bunch is introduced into further baths of an increasing concentration of alcohol. The baths may be connected by means of overflows and provided between one another with further means for squeezing or scraping off. When the material has left the bath of the highest concentration of alcohol, the adhering alcohol is removed by mechanical means so that only a small remaining portion of the alcohol is to be removed by evaporation. The goods thus obtained are reeled up. As a sudden shrinking is avoided by the low concentration of the first alcoholic bath, the goods exhibit especially favorable qualities.
• Wool-like artificial fibers substantially consisting of regenerated cellulose showing the dyeing properties of copper silk and being characterized by a high afilnity to substantive dyestuffs and a small afiinity to basic dyestuffs, which fibers are distinguished by a remarkable softness, a warm feeling and a crepe or curly form which properties render them similar to animal fibers, said artificial fiber product having been produced by the process of claim 1.
• Wool-like artificial fibers consisting of cop per silk distinguished by a remarkable softness, a warm feeling and a crepe or curly form which properties render them similar to animal fibers, said artificial fiber product having been produced by the process of claim 2.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Artificial Filaments (AREA)
• Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=32033831

Family Applications (3)

Family Applications After (2)

Country Status (6)

• 0
  • NL NL42289D patent/NL42289C/xx active
  • BE BE400704D patent/BE400704A/xx unknown
  • NL NL38746D patent/NL38746C/xx active
  • NL NL44164D patent/NL44164C/xx active
  • NL NL20892D patent/NL20892C/xx active
• 1933
  • 1933-12-30 FR FR766404D patent/FR766404A/fr not_active Expired
• 1934
  • 1934-01-05 US US705474A patent/US2109306A/en not_active Expired - Lifetime
  • 1934-01-10 GB GB1014/34A patent/GB424229A/en not_active Expired
  • 1934-01-12 CH CH215380D patent/CH215380A/de unknown
  • 1934-12-13 US US757372A patent/US2109307A/en not_active Expired - Lifetime
  • 1934-12-18 FR FR45680D patent/FR45680E/fr not_active Expired
  • 1934-12-28 GB GB37187/34A patent/GB435968A/en not_active Expired
• 1935
  • 1935-06-14 US US26698A patent/US2063209A/en not_active Expired - Lifetime
  • 1935-06-24 FR FR46362D patent/FR46362E/fr not_active Expired

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