SU1326669A1 - Elastic knitwear - Google Patents

Abstract

The invention relates to a knitwear industry and can be used for products operated under conditions of increased durability. The loops in the elastic knit are developed both from two strands — the usual extensibility and the elastomeric, and from one non-extensible thread. They alternate with each other in each hinge row and each hinge pillar. The loop module from a yarn of conventional extensibility, wired together with an elastomeric polyurethane thread, is 1.6-2.0 times larger than that in a loop without a polyurethane thread. 2 Il. 1 tab. with N3 O5 05 05 SB

Description

The invention relates to the knitwear industry, in particular, to the production of an elastic web, including an elastomeric spandex yarn and non-extensible yarns. The proposed knitwear can be used in the manufacture of products intended for use in conditions of increased durability. These products include sports and swimwear, underwear for diving equipment, articles of tourist equipment, as well as parts for the protection of parts and areas of diving suits. such as the sole, elbows and knees.

The purpose of the invention is to increase the wear resistance of knitwear.

FIG. 1 shows a diagram with; elastic knitwear; on, 2 is a weave pattern.

Elastic knitwear on the faces:); - the side in odd stitch loops (I, III) contains double loops 1 formed from yarn 2 of conventional stretchability and elastomeric polyurethane yarn 3, and single loops 4 formed from yarns 5 of ordinary stretch and, in the even looped rows (II), there are single loops 6 of the yarn 2 of the usual extensibility and double loops 7 of the yarns 5 of the usual stretchable and elastomeric yarn 8. On the seamy side, the elastic knitwear in the odd looped rows contains single loops 9 from yarn 5 normal extensibility and loop 10 from yarn 2 o elasticity and elastomeric polyurethane yarn 3, and in the even-numbered rows - double loops 11 from yarns 5 conventional stretch and elastomeric polyurethane yarn 8 and single loop and yarn 2 normal stretchability. The single and double loops alternate with each other through one in each looped column on both the front and back sides.

Example 1 The knitting of an elastic knit, in which the loop modulus of a yarn of conventional extensibility in a loop, wired together with a polyurethane thread, is 1.6 times larger than that of a loop without polyurethane yarn, is carried out on a round knit machine of polyamide texture - yarnovye yarns elastic linear.

five

0

five

0

ZV

sposti 10 and spandex polyurethane thread, 15.6 tex linear density,

EXAMPLE 2: Elastic knit fabricated as in Example 1 of a cotton yarn and a spandex polyurethane thread, in which a loop module made of a cotton yarn, wired together with a spandex polyurethane thread, is 2 times larger than in a loop without polyurethane spandex threads

EXAMPLE 3. Elastic knit fabricated according to Example 1 of wool yarn and a spandex polyurethane thread, in which the loop module of wool yarn, carried out together with the spandex polyurethane thread is 1.8 times larger than in a loop without polyurethane thread spandex.

The properties of the obtained elastic knitwear in examples 1-3 are presented in the table.

It can be seen from the data in the table that the proposed elastic knit has an increased durability compared to the known knitwear - the number of abrasion cycles before fracture increases by 8-10 times, the resistance to double bends - 1.5-2 times, the shrinkage of finished products decreases both in length and in width. Using various types of threads selected from the above group, it is possible to manufacture products with predetermined wear-resistant properties.

Formula

of

rete n i

40

The elastic knit, produced by interlock interlacing of inextensible and elastomeric polyurethane yarns and including loops of inextensible yarns, is distinguished by 5 u and with the fact that, in order to increase wear resistance, it additionally contains loops formed by two threads — inextensible and elastomer alternating with loops of

50 unstretchable threads through one in each looped row and in each looped column, while the module of a loop of unstretchable thread in a loop, wired together with polyurethane thread, is 1.6-2.0 times larger than in a loop from unstretched thread.

Prototype and base object

Stretch knit

280

2.1

6.2

32.5

8.6

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fig

L

Fi & .2

Editor T. Parfenova

Compiled by O. Lunkina Tehred L. Serdyukova

Order 3253/24

Circulation 400 Subscription

VNIIPI USSR State Committee

, for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Proofreader A.T. sko

Claims (1)

SUMMARY OF THE INVENTION ⁴⁰ Elastic knitwear produced by interlocking from inextensible and elastomeric polyurethane yarns and including loops of inextensible yarns, I distinguish ⁴⁵ y with the fact that, in order to increase wear resistance, it additionally contains loops formed by two threads - inextensible and elastomeric alternating with loops from 50 inextensible threads through one in each stitch row and in each stitch column, while the loop module of inextensible thread in a loop knitted together with polyurethane thread 55 is 1.6-2.0 times larger than in a loop of inextensible thread. Type of knitwear Loop Modulus Ratio Knitted surface density, g / m ^ Thickness, mm The number of cycles of abrasion to failure, thousand cycles Resistance to double bends, thousand cycles Shrinkage,% by lenght BY not width Prototype and base object - 280 1.8 2.1 6.2 32,5 18.6 Elastic knitwear According to example 1 1,6 280 2.2 13,2 147.3 11,4 4.9 According to example 2 2.0 296 2,4 10.1 102.6 14.8 6.7 For example 3 1.8 285 2.2. 12.0 114.3 18.6 7.2 FIG. / FIG. 2