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
  • D06M23/06—Processes in which the treating agent is dispersed in a gas, e.g. aerosols
• • 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

Definitions

• the finished goods contain nomore than the normal moisture content, which would be insufilcient-i'n amount to effect mildewing or rotting of the product;
• the yarns are not merely wet; they are saturated.
• saturated we mean that elemental cotton fibres have absorbed or taken. up liquid to'such an extent that the internal stresses or strains. of the fibers become, or approach; zero, and the gums or waxes which inhere on or in the fibres are softened; in other words, that thesubstance of the fibre no longer has to contend with internal stresses but is free to oppose resistance to stresses arising from the outside, and that the fibres and gums or waxes are thus fused ,to a greater extent than has heretofore obtained in the manufacture of yarns or. cord.
• the fibres become setand are bonded with the naturalgums and waxes.
• the saturated cottonyarn When we state that, the saturated cottonyarn is twisted we mean that said yarn may be twisted in the usual manner or may be twisted under greater than normal tension or, stretch.
• tension or "stretch” we mean that the saturated yarn is subjected to a greater tension .or stretch than is applied in the usual twisting operation, so that the elemental fibres are brought into closer contact, one with the other and are more closely bonded into a unified product than is caused by saturating and twisting alone.
• the higher'the'tension or stretch which is applied the higher is the heat-resistant quality.
• compression we-mean compression by the usual means employed in the industry to reduce the diameter of a plied yarn or cord.
• steps of the process producing our heat-resistant yarn or cord comprise:
• The. stretching and'compressing may be carried out in anyorder; but the process consists of. the saturation of the, cotton yarn to soften the natural. gurn thereofiand'thereby permitting a. closer packingof the fibresitogether-and bonding with the natural gum during the various stepsof twisting, compressing and stretching.
• the process consists of. the saturation of the, cotton yarn to soften the natural. gurn thereofiand'thereby permitting a. closer packingof the fibresitogether-and bonding with the natural gum during the various stepsof twisting, compressing and stretching.
• the additional stretching increasesit still further; and, when thestretched cord is compressed, the strength is still further increased.
• the comparative strengths under these difierent conditions are set forth in the following table, which averages the results obtained by extensive tests in the laboratory of the assignee of this invention.
• yarn or yarns means any single yarn or any plied yarn composed of any number of single yarns plied or folded together;
• cord means any number of plied yarns twisted into a cord or cable.
• V 3 A heat resistant cotton yarn in which the cotton fibers are compacted by twisting and stretching while the natural gums and waxes of the fibers are softened by saturation, and have.
• aheat-resistant' cotton cord which consists in twisting single yarns of cotton to form plied yarns-saturating the plied yarns with non-cotton-destroying-and non-coating liquid, twisting the plied yarns to form a cord, stretching the plied yarns during theztwisting thereof .under tension just below breaking point, and compressing the twisted and stretched cord.
• a heat resistant cotton. yarn the natural gums and waxes of which have been softened and rehardened and having substantially constant tensile strength; during alli changes'of moisture content from normal to bone dry, and having substantially lower stretch'anddiameter than normally-processed cotton yarn containing the samequantity of cotton per unit length.
• cords and the like to soften the natural gums and waxes thereof; and twisting said saturated yarns, threads, .cords and the like,-,while the said gums andwaxesare softened, under tension just short of the :breaking'point, to fuse the cotton fibers with the'softenedgums and waxes retained therein. :1 l I I 22.
• Theprocessof manufacturing heat, resistant cotton yarns, threads, .cords and the like which-consists in saturating saidyarns, threads, cords and the like to soften the natural gums and waxes thereofrand twisting said saturated yarns, threads, cords and the like, while the said gums and'waxes are softened, under tension just short of the breaking point, to fuse the cotton fibers with -'the softened gums and waxes retained therein and compressingthe threads or cords resulting from the saturation and twisting under tension of said saturated yarns, threads, cords and thelikeiw a I EUGENE C. GWALTNEY, LEON A. GRAYBILL'.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=21927249

Family Applications (1)

Country Status (2)

Cited By (8)

Families Citing this family (1)

• 1935
  • 1935-10-03 US US43454A patent/US2103218A/en not_active Expired - Lifetime
• 1937
  • 1937-11-30 FR FR830160D patent/FR830160A/fr not_active Expired

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