Response of Cottons to Chemical Treatments

Rebenfeld, Ludwig

doi:10.1177/004051756203200210

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…The general relationship is very pronounced ; the scatter can be attributed to the greater changes in yarn than in fibers with resin and with low and high tensions. The figure also bears out the point commented on by Rel>enfeld [10], that the exact eflect tension applied to a yarn during curing has upon the individual fiber is difhcult if not impossible to predict due to the complex geometry of the yarn. In Figure 4 is given a logarithmic plot of yarn and bundle toughness values.…”

Section: Secant Modulus and Toughnessmentioning

confidence: 65%

The Effects of Various Combinations of Chemical and Physical Treatments on the Physical Properties of Cotton Yarns and Bundles

Egle

Grant

Orr

1967

Textile Research Journal

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The effects of tension during resin treatment on the physical properties of yarns and fibers that had received various combinations of pretreatments were investigated for Pima, Bobshaw, and Deltapine cottons. Pretreatments included scouring, mercerization, and acid degradation. Dimethylolethyleneurea (DMEU) resin was applied at 2 and 5% add-on. Relationships between bundle and yarn tensile properties were studied and found to have high correlation. Some evidence was found that degradation prior to tension during resin curing has the effect of preventing strength losses due to crosslinking. Degradation was observed to inhibit relative elongation losses in yarns due to tension curing. Degradation caused lower values of toughness whereas mercerization prevented such losses.

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Section: Secant Modulus and Toughnessmentioning

confidence: 65%

The Effects of Various Combinations of Chemical and Physical Treatments on the Physical Properties of Cotton Yarns and Bundles

Egle

Grant

Orr

1967

Textile Research Journal

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“…Electron microscope photographic studies [6] of the surface of cotton fibers show tlie presence of roughness of the magnitude that can catise loss of polarization. Uiidried cotton from tlie boll lias been slio\vn [GI to have this characteristic smooth surface, which accounts for its kno\vii higher luster.…”

Section: Source I -mentioning

confidence: 99%

A Study of the Effect of Cotton Fiber Structure on Luster

Holboke¹,

Berriman²

1963

Textile Research Journal

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~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.

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Morphological foundations of fiber properties

Rebenfeld

1965

J. polym. sci., C Polym. symp.

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Structural theories which have been developed to interpret the chemical, physical, and mechanical properties of fibers are reviewed, with particular emphasis on the natural fibers. It is pointed out that many of the current theories of fiber structure derive from early concepts of the natural cellulosic or vegetable fibers. The micellar, the fringed micellar, and the fringed fibrillar theories, as well ay the concept of lateral order distribution are presented. The growth and development of cotton fibers are discussed and variations in structure are shown to be reflected in their properties. In this connection fibrillar orientation and helical reversals in cotton fibers are particularly important. The complex organochemical and supermolecular structure of keratin fibers is presented and is shown to be related to the chemical and mechanical properties of these fibers. Cortical asymmetry is a unique structural feature of keratin fibers which is responsible for the characteristic three‐dimensional crimp of wool fibers. The well‐known supercontraction of keratin fibers in a variety of chemical systems is discussed in terms of a chemical mechanism involving sulfhydryl‐disulfide interchange.

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Response of Cottons to Chemical Treatments

Cited by 6 publications

References 12 publications

The Effects of Various Combinations of Chemical and Physical Treatments on the Physical Properties of Cotton Yarns and Bundles

The Effects of Various Combinations of Chemical and Physical Treatments on the Physical Properties of Cotton Yarns and Bundles

A Study of the Effect of Cotton Fiber Structure on Luster

Morphological foundations of fiber properties

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