CN211620713U - Knitting no crosspiece viscose vortex spinning yarn - Google Patents

Abstract

The utility model discloses a knitting non-crosspiece viscose vortex spinning yarn, which comprises a core yarn, a first coating fiber layer and a second coating fiber layer; the first coating layer is coated on the outer side of the core yarn through an eddy current spinning process, and the second coating layer is coated on the outer side of the first coating fiber layer; the first coating fiber layer is made of viscose staple fibers, and the second coating fiber layer is made of combed cotton fibers. The utility model relates to a knitting no crosspiece viscose vortex spins yarn, uses the cotton fiber through combing at second cladding fibrous layer for the evenness of this layer obtains improving, and the evenness of the evenness that can use whole yarn obtains improving, has reduced the yarn when knitting, the appearance of reducible whole knitted fabric crosspiece fault. And the core yarn adopts chemical fiber filaments, so that the strength of the whole yarn can be improved, and the yarn can be possibly used for knitting.

Description

Knitting no crosspiece viscose vortex spinning yarn

Technical Field

The utility model relates to a weaving yarn technique, especially a knitting no crosspiece viscose vortex spins yarn.

Background

The knitted fabric crosspiece refers to the phenomenon that one or a plurality of transverse row coils are denser or sparser than other transverse row coils on the cloth surface of the knitted fabric, and the colors of the transverse row coils are obviously different. The knitted fabric has high requirements on the performance of the yarn, such as small twist coefficient of the yarn, soft yarn, not too low strength of the yarn, small yarn evenness unevenness and the like. Thus, poor yarn performance can affect fabric appearance, forming cross-bars or irregular rungs across the fabric on the fabric surface. The appearance of the crosspiece defects on the cloth surface of the knitted fabric not only reduces the quality and the grade of products, but also can seriously affect the credit of enterprises and reduce the profits of the enterprises.

The spinning principle of vortex spinning is that sliver which finishes drawing is supplied to a drafting device, fiber bundles drafted by a roller drafting device are output from a front roller jaw and enter a spinning nozzle along a spiral fiber guide channel under the action of axial airflow at the inlet of the spinning nozzle. The outlet of the spiral fiber guide channel is provided with a needle-shaped twist-stopping piece, and the fiber bundle is bent at the needle part, so that the fiber bundle is introduced into the vortex chamber in a state of not adding twist. The leading end of the fiber bundle is drawn into a yarn passage in the spindle by the dragging action of the formed yarn and twisted into the newly formed yarn as a yarn core. The tail end of the fibre remains in the fibre guide channel while being gripped by the front roller nip. When the tail end of the fiber is not held by the front roller jaw any more, the tail end of the fiber is not kept in the fiber guide channel under the centrifugal action of the air vortex in the spinning nozzle, but is radially dispersed by the rotating airflow at the spindle inlet, is laid on the conical surface at the front end of the spindle under the driving of the air vortex, rotates along with the air vortex, is wound on the subsequent yarn and is output through the channel of the yarn in the spindle. The yarn formed is composed of a yarn core formed by approximately parallel untwisted fibers and fibers wrapped spirally on the periphery. The resultant yarn of vortex spinning has too short coagulation process due to poor fiber straightness, so that the yarn has loose structure and low strength. The yarn formed by vortex spinning has uniform evenness, but the yarn is not suitable for knitting yarns because the strength of the yarn is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a knitting does not have crosspiece viscose vortex and spins yarn can satisfy the powerful requirement of knitting yarn to improve the evenness homogeneity of yarn, avoided the knitted fabric to produce the crosspiece fault.

In order to solve the technical problem, the purpose of the utility model is to realize like this:

the utility model relates to a knitting non-crosspiece viscose vortex spinning yarn, which comprises a core yarn, a first coating fiber layer and a second coating fiber layer; the first coating layer is coated on the outer side of the core yarn through an eddy current spinning process, and the second coating layer is coated on the outer side of the first coating fiber layer; the first coating fiber layer is made of viscose staple fibers, and the second coating fiber layer is made of combed cotton fibers.

As a further illustration of the above scheme, the core yarn is spandex filament or T400 stretch filament.

As a further explanation of the above scheme, the core yarn is formed by twisting one untwisted acrylic yarn and at least one polyester filament yarn.

As a further explanation of the above scheme, a third coating fiber layer is arranged between the first coating fiber layer and the second coating fiber layer; and the fiber used by the third fiber coating layer is polyester staple fiber.

As a further illustration of the above solution, the cotton fibers used are long staple cotton.

The utility model has the advantages that: the utility model relates to a knitting no crosspiece viscose vortex spins yarn, uses the cotton fiber through combing at second cladding fibrous layer for the evenness of this layer obtains improving, and the evenness of the evenness that can use whole yarn obtains improving, has reduced the yarn when knitting, the appearance of reducible whole knitted fabric crosspiece fault. And the core yarn adopts chemical fiber filaments, so that the strength of the whole yarn can be improved, and the yarn can be possibly used for knitting.

Drawings

FIG. 1 is a schematic view of the structure of a yarn according to an embodiment.

Figure 2 is a schematic structural view of a yarn according to a third embodiment.

Figure 3 is a schematic representation of the structure of a yarn according to example four.

The designations in the figures illustrate the following: 1-core yarn; 11-untwisted acrylic yarn; 12-polyester filament yarn; 2-a first coating fiber layer; 3-a second coated fibrous layer; 4-third coating fiber layer.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Example one

This embodiment will be described in detail with reference to fig. 1. The knitting non-crosspiece viscose vortex spinning yarn comprises a core yarn 1, a first coating fiber layer 2 and a second coating fiber layer 3. The first coating layer 2 is coated on the outer side of the core yarn 1 through an eddy current spinning process, and the second coating layer 3 is coated on the outer side of the first coating fiber layer 2; the first coating fiber layer 2 is viscose staple fiber, and the second coating fiber layer 3 is combed cotton fiber. The viscose used had a fineness of 1.56D and a length of 38 mm.

Viscose staple fibers are regenerated fibers whose staple fibers have the same length. However, cotton fibers are natural fibers, and therefore, the cotton fibers have poor length uniformity and have different lengths. The yarn prepared from the fibers with different lengths after the working procedures of carding, drawing and the like has poor evenness of evenness, and the cotton fibers after combing have good evenness of length, so that the yarn with good evenness of evenness can be prepared. The yarn according to this example was produced with better evenness of the sliver than cotton fiber after carding. The yarn evenness directly influences the fabric surface effect of the knitted fabric, and the occurrence of knitting crosspiece defects can be reduced. The cotton fiber used is long staple cotton.

Further, the core yarn 1 is spandex filament or T400 stretch filament, and in this embodiment, the core yarn 1 is selected to be spandex filament with a fineness of 30D. Making the entire yarn elastic.

Example two

This embodiment will be described in detail with reference to fig. 1. The knitting non-crosspiece viscose vortex spinning yarn related to the embodiment is different from the first embodiment in that: in this example, the core yarn 1 was selected as a T400 filament. The T400 filament is a composite elastic fiber, has permanent spiral crimpability, excellent bulkiness, elasticity, elastic recovery rate, color fastness and particularly soft hand feeling, and overcomes the defects of the classical elastic fiber spandex in the directions of high temperature resistance, alkali resistance and chlorine resistance. Even after 500 times of repeated stretching, the elastic recovery rate can be kept more than 95%. The T400 fiber is a hollow fiber with grooves, so that the bulkiness and the flexibility of the fiber are superior to those of common polyester, and the moisture absorption and sweat releasing functions of the fiber are good.

EXAMPLE III

This embodiment will be described in detail with reference to fig. 2. The knitting non-crosspiece viscose vortex spinning yarn related to the embodiment is different from the embodiment I in that: the core yarn 1 is formed by twisting a 21s untwisted acrylic yarn 11 and at least one polyester filament yarn 12. The use of the untwisted acrylic yarn 11 can reduce the yarn evenness when the yarn is plied with the polyester filament yarn 12. If two yarns with twist are used for plying, the twist of the plied yarns is not easy to control because each yarn has twist. The non-twisted acrylic yarn 11 completely covers the polyester filament yarn 12. The fineness of the used polyester filament yarn is 50D/72F DTY.

Example four

This embodiment will be described in detail with reference to fig. 3. The knitting non-crosspiece viscose vortex spinning yarn related to the embodiment is different from the first embodiment in that the core yarn 1 is 32s common cotton yarn. A third coating fiber layer 4 is arranged between the first coating fiber layer 2 and the second coating fiber layer 3; the fiber used by the third fiber coating layer 4 is polyester staple fiber. The provision of the third covering fiber layer 4 can improve the strength of the entire yarn. And the arrangement of the multiple fiber coating layers can improve the evenness of the whole yarn. In the third covering fiber layer 4, fiber bonding points are provided, which are obtained by melting ES fibers. The ES fiber is a sheath-core fiber, and the outer layer thereof has a low melting point. After a certain temperature treatment, the outer layer of the ES fiber is melted to bond the fibers in contact with the ES fiber. The fineness of the polyester fiber used was 1.56D, and the length was 51 mm.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (5)

1. The knitted non-crosspiece viscose vortex spun yarn is characterized by comprising a core yarn (1), a first coating fiber layer (2) and a second coating fiber layer (3); the first coating fiber layer (2) is coated on the outer side of the core yarn (1) through an eddy current spinning process, and the second coating fiber layer (3) is coated on the outer side of the first coating fiber layer (2); the first coating fiber layer (2) is made of viscose staple fibers, and the second coating fiber layer (3) is made of combed cotton fibers.

2. The knitted rung-free viscose vortex spun yarn according to claim 1, characterised in that the core yarn (1) is a spandex filament or a T400 stretch filament.

3. The knitted crosspiece-free viscose vortex spun yarn of claim 1, wherein the core yarn (1) is formed by twisting a non-twisted acrylic yarn (11) with at least one polyester filament yarn (12).

4. The knitted rung-free viscose vortex spun yarn according to claim 1, wherein a third covering fiber layer (4) is arranged between the first covering fiber layer (2) and the second covering fiber layer (3); the fibers used by the third coating fiber layer (4) are polyester staple fibers.

5. The knitted rung-free viscose vortex spun yarn of claim 1 wherein the cotton fiber used is long staple cotton.

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