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
  • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
  • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
  • D01D10/04—Supporting filaments or the like during their treatment
  • D01D10/0409—Supporting filaments or the like during their treatment on bobbins

Definitions

• the present invention relates to the manufacture of yarn of artificial origin but more particularly refers to the production of threads adapted for use in the manufacture of crepe 5 fabrics.
• the aforementioned after-treated yarn body was first dried on the spool and then wound into skeins whereby a slight twist was imparted to the thread.
• the artificial silk in skeined form was then subjected to the sizing process which was carried out with solution size as well as with different known watery emulsion sizes.
• the sized yarn in skeins was then rewound onto spools.
• the yarn thus obtained was then in condition for use in the production of crepe fabrics.
• Another object of the present invention is a method which eliminates the winding of the yarn into skein form prior to the sizing thereof, thus eliminating a step in the usual process.
• a further object of the present invention is a method which eliminatesthe rewindingof the yarn for the purpose of imparting a preliminary twist thereto.
• An additional object is a method for the production of crepe yarn which offers a uniform sizing throughout the entire yarn package.
• the yarn extruded through spinnerettes and wound'upon a permeable support such as for example ordinary perforated spinning spools is washed in accordance with any suitable and known method, for example, in accordance with the suction or pressure washv method and then after-treated, i. e., desulphurized, bleached etc. in order to free the yarn from salts and acids.
• a permeable support such as for example ordinary perforated spinning spools
• the latter is carried out in accordance with the pressure sizing method whereby the hot sizing liquid or watery sizing emulsion is forced by means of pressure through the wet yarn body, namely from its inside to its outside.
• the hot water contained in the washed and after-treated yarn body prior to sizing prevents the cooling of the sizing liquid at the beginning of the sizing operation, thus eliminating irregular precipitations and crustation of the sizing solution in the different thread layers.
• sizing s olutions may be used including ordinary sizing emulsion containing fats, oils with or without addition of linseed oil and the like. After the sizing liquid which in most cases has a temperature of from 30 to 40 C. has been forced through the yarn body on the spool for about 3 minutes, the sizing operation is discontinued. It has been found that the sizing of the yarn package from the inside to the outside by means of pressure offers the great advantage that a very uniform distribution of the sizing agent in the yarn body takes place and that no undesirable local coagulations within the yarn body, particularly if emulsion sizes are employed, occur which might cause siltings (sliminess) and agglutinations.
• the yarn bodies so treated are then subjected to the usual drying process and subsequently to the twisting operation whereby the desired high twist necessary in the manufacture of crepe fabrics is imparted tothe thread.
• the very efiicient suction treatment after sizing makes it possible to twist the yarn without subjecting it to a special drying process. Owing to the uniform sizing and intensive suction after sizing it is thus possible to carry out the crepe twisting operation in only one single step, i. e., the untwisted yarn from the spinning spool is directly twisted into the finished crepe yarn whereby any desired number of to the thread.
• the steps which comprise collecting artificial silk in a hydrated form on a permeable support to form a wet yarn body thereon, removing impurities from said yarn body by wet treatment, forcing a sizing solution through said yarn body from the inside to the outside thereof, and then removing excess sizing solution from said yarn body by sucking a gaseous medium through said sized yarn body from the outside to the inside thereof.
• the steps which comprise collecting artificial silk in a hydrated. form on a permeable support to form a wet yarn body thereon, removing impurities from said yarn body with hot water, forcing a sizing solution through said yarn body from the inside to the outside thereof, and then removing turns may be imparted excess sizing solution from saidyarn body by sucking a gaseous medium through said sized yarn body from the outside to the inside thereof.
• the steps which comprise collecting artificial silk in a hydratedform on a permeable support to form a. wet yarn body thereon, removing impurities from said yarn body by Wet treatment, forcing a sizing solution through said yarn body from the inside to the outside thereof, andthen removing excess sizing solution from said yarn body by sucking air through said sized yarn body from the outside to the inside thereof.
• the steps which comprise collecting artificial silk in a hydrated form on a permeable support to form a wet yarn body thereon, removing impurities from said yarn body by" wet treatment, forcing a sizing solution having a temperature of about 30 to 40 C. through said yarn body from the inside to the outside thereof, and then removing excess sizing solution from said yarn body by sucking a gaseous medium through said sized yarn body from the outside to the inside thereof.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Mechanical Engineering (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=7990768

Family Applications (1)

Country Status (2)

Cited By (2)

• 0
  • NL NL48662D patent/NL48662C/xx active
• 1938
  • 1938-03-04 US US194014A patent/US2219728A/en not_active Expired - Lifetime

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