Effect of yarn twist on the surface appearance of worsted fabric. I. Crinkling mechanism of wool crepe fabric and yarn twisting conditions (Japanese)

To investigate how the twist of constituent yarns affect the formation of crinkles on worsted fabrics in the finishing process we made an apparatus that enabled detection of the untwisting touque and shrinking force generated in a single yarn immersed in hot water. From the results, we could verify the following facts: in the finishing of..

Comfort properties of fabrics woven from ring-, rotor-, and friction-spun yarns

Fabrics woven from ring-, rotor-, and friction-spun yarns, have been compared from the standpoint of comfort. Emphasis has been placed on the tactile and thermal aspects of comfort by the use of the Kawabata Fabric Evaluation system. The effect of the weave on the comfort aspects of the fabric has also been studied. Although ring-spun yar..

Influence of yarn count and material along with machine condition on splice quality during winding

In this study it was found that the maintenance schedule and practices followed by mills for splicers differ even for the same make of machine, mainly depending on the age of the machine, the material processed and experience. Retained splice strength (RSS) and splice breakage ratio (SBR) values improved after thorough maintenance and wee..

Twist level of triplet spun silk yarn (Japanese)

In order to improve the strength of yarn and diversify of yarn structure, a triplet spun silk yarn was made by using an experimental ring-spinning frame. The twist levels of triplet spun silk yarns were examined under various spinning conditions. And then, the relationships between twist levels and spinning conditions of triplet spun yarn..

The influence of the technological flow of obtaining the yarns spun on nonconventional rotor systems over the sized yarn properties (Romanian) (Influenta fluxului tehnologic de obtinere a firelor filate pe sisteme neconventionale cu rotor asupra proprieta

The paper had in view the physico-mechanical properties of the sized yarns obtained on rotor spinning systems. There have been sized Nm 40/1 and Nm 50/1 yarns, which have been carded and combed, accomplished on rotor spinning frames. There has been had in view the break load, break elongation and the abrasion resistance of the sized yarns..

The influence of the fibre characteristics over the destroying modulus of the core yarn structures (Romanian) (Influenta caracteristicilor fibrelor asupra modului de distrugere a structurli firelor cu miez)

The paper presents the results of the study of the influence of the shield fibre participation quotas over the destroying modulus of the core yarn structure. There have been spun and accomplished Nm 40, Nm 50, Nm 60 yarn having the filament core textured from polyamide 44 dtex＼12 f, and the shield of two types of carded cotton, each yarn..

Spandex raschels

This paper examines the basic fabric properties offered by spandex-containing fabrics. In order to understand warp knit raschel machines, it outlines twelve basic differences between such machines and warp knit tricot machines. In particular, the paper details the properties and advantages of the four stitch constructions used within span..

Polyurethane foam performance and design characteristics for elastic application

This paper discusses the advances of using polyurethane foam, as they relate to design and performance characteristics, in order to cost-effectively empty flexible polyurethane foam in a disposable product. Polyurethane foam is currently 15 to 40％ less ex

Structural change of poly)3-hydroxybutyrate-co-3-hydroxyvalerate) fibers during heting process (Japanese)

Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) fibers were prepared under different drawing and annealing conditions. Three types of crystal structure were observed in each fiber. These are orthorhombic crystals with two different orientation modes and a ne

Structure and biodegradation of fibers made from poly (butylene succinate-co-ethylene succinate)s (Japanese)

Monofilaments made from high-molecular-weight poly (butylene succinate-co-ethylene succinate)s (ethylene succinate content: 0 to 22 mole％) were prepared by melt spinning. Enzymatic degradation tests by lipase and environmental degradation such as soil bur