All-Cotton Stretch and Bulked Yarns and Fabrics

~I A R C I I 1963 205useful extent. Cross-linking does iiot reduce stretchability greatly, but breaking and tearing strength of the fabric are lowered. Both strength loss and improvement in the properties noted are governed by the amoynt of add-on. I n practical use, the degree of improvement would have to be balanced against the loss in strength that is tolerable. AbstractCotton and synthetic fibers were studied analytically and cxperinientally to deterniitie tlie basic cause of luster in fibrous niaterials. The aiialytic technique used provided a mathematical description of tlie interaction of light with a nearly ideal fiber, namely, glass. An instrument was constructed to measure the angle and intensity of light scattered from single fibers.The ideal glass fiber gave esperimental data which correlated with those from the analysis. By the use of polarized light it was possible to iiieasure the coherency of the scattering process, which was fouiid to lie a measure of tlie luster of the fibers.Under suitable esperiniental conditions, it was shown that surface reflection froin a fibcr is the source of the luster quality and that a small degree of surface rougliness is very effective in decreasing the Iirster. It is iiot knon-n exactly what inagiiitude of surface discontinuity is most responsible for loss of luster; however, it is quite possible that ways may be found to decrease these discontinuities atid so increase the luster of cotton to any degree desired.A number of fibers were investigated in this way.

Section: Source I -mentioning

confidence: 99%

A Study of the Effect of Cotton Fiber Structure on Luster

Holboke¹,

Berriman²

1963

“…Crease recovery angles and wash-wear ratings show that a high degree of wrinkle resistance and smooth drying properties can be introduced by the 3 Mention of a company and/or product name by thc Department does not imply approval or recommendation of the product to the exclusion of others which may also be treatment. The response is much the same as is obtained on treatment of ordinary cotton.…”

Section: I'riiiklc Resist Niicr Nii D I'nsh-~l'cnr Prop Ert Icsmentioning

confidence: 99%

Cotton Stretch Fabrics by Slack Mercerization: Part II: Effects of Cross-Linking

Kullman

Fenner

Frick

et al. 1963

1963iiients ; t o M r . Donald ;\litcham for x-ray diffraction iiieastirenients ; to AIr. J. J. Brown, bIr. E. C. Kingsbery, Mr. N. P. Roddy, antl bIr. 11. J. Uocage for weaving the fabrics and for assistancc in fabric dcsign ; to AIr. J. 11. ;\Iattliews antl AIr. James Franklin for assistance in slack mercerization processing. \ 199 L i t e r a t u r e Cited 1. Dickson, J. B., AbstractThe effects of cross-linking cotton stretch fabrics with dimethylol ethylencurea have been studied. Results are similar to those obtained with ordinary cotton; that is, the stretch cloth, after cross-linking, has wasli-u-ear antl \vrinkle resistance properties but loses in tearing antl breaking strength. The amount of add-on governs strength loss, and in practical use it must be balanced against the degree of wash-wear improvement desired.The effect of prolonged stretching on size antl on shape, measured as growth, is reduced by crosslinking, but washing is essential for recovery. Under conditions of repeated stretching without washing, pernianent set, imniediate recovery, and delayed resiliency are affected very little by cross-linking.Stretchability of the fain-ic is not greatly lowered by cross-linking.

“…In nonthermoplastic cellulosics, however, thermally-induced crystallization is not possible, and setting, here, is brought about by the introduction of covalent crosslinks through bifunctional resins [. [1][2][3][4]7]. In a recent publication we showed that cotton yarns can also be textured through a decrystallization-recrystalliia.tion cycle following a chemomechanical route [8].…”

Section: Introductionmentioning

confidence: 99%

New Methods of Texturing Polyester/Viscose Blended Yarns by Simultaneous Setting of the Components

Sengupta¹,

Bajaj²,

Sen³

1980

A two-ply 50/50 polyester/viscose spun yarn was textured by the twist-set-detwist process through simultaneous setting of the components. The setting methods employed were 1) heat-setting plus dry-crosslinking by the use of resins at high curing temperatures, and 2) solvent-setting plus wetcrosslinking by a solution of epichlorohydrin in tetrachloroethane. It is observed that while the mechanical properties and crimp-rigidity values of the yarns produced by the two methods are comparable, method 2 produces yarn with a higher wet retractability and a considerably higher dye uptake.