Breathable slub wrap yarn and process for making same

Abstract

The application discloses air-permeable slub covering yarn and belongs to the technical field of textile processing. The air-permeable slub covering yarn comprises core yarn and winding yarn, the winding yarn is spirally wound on the outside of the core yarn, the core yarn is profiled fiber, the core yarn comprises a central part and a plurality of extension parts, the extension parts are connected with the central part, and the plurality of extension parts are arranged at intervals along the length direction of the central part. The air-permeable slub covering yarn can increase the forming effect of the slub, ensure the uniform size of the slub, increase the forming efficiency, increase the gas flow between the body and the covering yarn by the slub, and improve the air-permeable effect of the textile.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textile processing, more particularly, it relates to a breathable knop covered yarn. BACKGROUND

[0002] Knop yarn is a kind of yarn with uneven fineness in local part of the yarn. It is widely used because it can form a unique three-dimensional pattern effect and reduce the contact area with the body and increase the air permeability.

[0003] The existing knop yarn is divided into variable draft method, front nipper implantation method and draft wave method according to the production method.

[0004] However, these methods have high requirements for equipment, and the forming effect of knops is general, and the size of knops is not uniform. SUMMARY

[0005] In view of the deficiencies in the prior art, the purpose of the present application is to provide a breathable knop covered yarn.

[0006] The above technical purpose of the present application is realized by the following technical scheme:

[0007] The breathable knop covered yarn comprises a core yarn and a winding yarn, the winding yarn is spirally wound on the outside of the core yarn, the core yarn is a profiled fiber, the core yarn comprises a center part and a plurality of extension parts, the extension parts are connected with the center part, and the plurality of extension parts are arranged at intervals along the length direction of the center part.

[0008] The present application is further provided that: the extension part comprises a plurality of protrusions, and the plurality of protrusions are arranged on the center part at intervals in a ring shape with the center part as the center.

[0009] The present application is further provided that: the length direction of the protrusion and the diameter direction of the center part form an angle, and the winding direction of the winding yarn is consistent with the opening direction of the angle between the protrusion and the center part.

[0010] The present application is further provided that: a protruding strip is formed between two protrusions respectively located on two extension parts, and the protruding strip is connected with the protrusions.

[0011] The preparation process of the breathable knop covered yarn comprises the following steps:

[0012] S1, the raw material of the core yarn is added to the screw extruder, and the screw extruder heats the raw material of the core yarn;

[0013] S2, the raw material of the core yarn after heating is extruded through a screw extruder, and a molten core yarn is formed through a spinneret one and a spinneret two, and the extension of the core yarn is intermittently blocked by relative reciprocating rotation between the spinneret two and the spinneret one;

[0014] S3, the core yarn leaving the spinneret two is cooled and shaped;

[0015] S4, the core yarn obtained in S3 and the wrapping yarn are processed through a composite twisting machine, so that the wrapping yarn is spirally wrapped outside the core yarn to form a covered yarn.

[0016] The application further provides that the screw extruder is fixedly installed with a mounting seat at a discharge port, the spinneret one is fixedly connected in the mounting seat, the spinneret two is rotatably connected in the mounting seat, the spinneret two is located on the side away from the screw extruder, the spinneret one is provided with a central port one and an extension port one in communication with the central port one, and the spinneret two is provided with a central port two and an extension port two in communication with the central port two.

[0017] The application further provides that the mounting seat is provided with a connecting port corresponding to the spinneret two, the spinneret two is installed with a gear, the screw extruder is installed with a cylinder, a piston end of the cylinder is installed with a rack, and the rack and the gear are engaged.

[0018] The application further provides that the spinneret one extends a plurality of guide protrusions, each two adjacent guide protrusions are provided with an extension port one, and the guide protrusions extend into the central port two.

[0019] In summary, the application has the following beneficial effects:

[0020] When the wrapping yarn is wrapped to the position with the protrusion of the core yarn, the wrapping yarn is wrapped outside the protrusion, and the protrusion is tightly attached to the outside of the core yarn due to stress, and the protrusion can support the wrapping yarn, the wrapping diameter of the wrapping yarn at the protrusion position of the core yarn is increased, so that the covered yarn forms a bamboo joint, compared with the existing method, the forming effect of the bamboo joint is increased, the size of the bamboo joint is uniform, and the forming efficiency is increased. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The structure of the breathable bamboo joint covered yarn of the application is shown in the figure Figure 1

[0022] Figure 2 The structure of the breathable bamboo joint covered yarn of the application is shown in the figure Figure 2

[0023] Figure 3 The structure of the core yarn of the application is shown in the figure

[0024] ​​Figure 4 Structure diagram of the screw extruder of the present application;

[0025] Figure 5 Structure diagram of the mounting seat of the present application;

[0026] Figure 6 Structure diagram of the mounting seat and the spinneret one and the spinneret two of the present application; Figure 5 Enlarged view of A in the figure;

[0027] Figure 7 Structure diagram of the mounting seat and the spinneret one and the spinneret two of the present application;

[0028] Figure 8 Enlarged view of B in the figure; Figure 7 Enlarged view of B in the figure;

[0029] Figure 9 Structure diagram of the mounting seat and the spinneret one and the spinneret two of the present application;

[0030] Figure 10 Enlarged view of C in the figure. Figure 9

[0031] In the figure: 1, center part; 2, protrusion; 3, convex strip; 4, winding yarn; 5, mounting seat; 6, spinneret one; 7, spinneret two; 8, center port one; 9, extension port one; 10, center port two; 11, extension port two; 12, guide convex; 13, screw extruder; 14, air cylinder; 15, rack; 16, gear; 17, connecting port. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the accompanying drawings in the embodiments of the present application. It should be understood that, in the description of the present application, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0033] As Figure 1 and Figure 2 shown, the present application provides a breathable bamboo joint covering yarn, which, after being woven into a fabric, forms a personalized texture feature on the surface of the fabric and increases the air permeability of the fabric. The breathable bamboo joint covering yarn comprises a core yarn and a winding yarn 4, and the winding yarn 4 is spirally wound outside the core yarn. The connection of the core yarn and the winding yarn 4 can increase the bonding degree of the covering yarn and increase its strength.

[0034] As​Figure 2 and Figure 3 As shown in the figure, the core yarn is a profiled fiber, the core yarn comprises a central part 1 and a plurality of extension parts, the plurality of extension parts are arranged on the central part 1 along the length direction of the central part 1, the extension part comprises a plurality of protrusions 2, the plurality of protrusions 2 are arranged on the central part 1 in a ring shape with the central part 1 as the center, two protrusions 2 located on two extension parts respectively form a protrusion strip 3, the protrusion strip 3 is connected with the protrusions 2, the size of the protrusion strip 3 is smaller than the size of the protrusions 2, when the wrapping yarn 4 is wrapped outside the core yarn, the wrapping yarn 4 will be wrapped outside the protrusions 2 and the protrusion strip 3.

[0035] As shown in the figure, Figure 1 and Figure 2 The support of the protrusion strip 3 will cause a gap between the core yarn and the wrapping yarn 4, so that the air permeability and moisture conductivity of the covered yarn can be increased, because the length of the protrusion 2 is greater than the length of the protrusion strip 3, the protrusion 2 will be deformed due to the force of the wrapping yarn 4, so that the protrusion 2 is tightly attached to the outside of the central part 1, at the same time, the protrusion 2 will support the wrapping yarn 4, the wrapping diameter of the wrapping yarn 4 at the protrusion 2 on the core yarn will increase, so that the covered yarn will form a node, wherein the length direction of the protrusion 2 and the diameter direction of the central part 1 form an angle, and the wrapping direction of the wrapping yarn 4 is consistent with the opening direction of the angle between the protrusion 2 and the central part 1, so that the protrusion 2 can deform in the consistent direction, and the uniformity and stability of the size of the node can be ensured.

[0036] The preparation process of the air-permeable node covered yarn comprises the following steps:

[0037] S1, the raw material of the core yarn is added to the screw extruder 13, the raw material of the core yarn can be selected from polyester or spandex, etc., the screw extruder 13 is used to heat the raw material of the core yarn, so that the raw material of the core yarn is melted;

[0038] As shown in the figure, Figures 4-10 The mounting seat 5 is fixedly installed at the discharge port of the screw extruder 13 by bolts, the spinneret one 6 and the spinneret two 7 are arranged in the mounting seat 5, the spinneret one 6 is fixedly installed in the mounting seat 5 by bolts, the spinneret two 7 is rotatably connected with the mounting seat 5, and the spinneret two 7 is located on the side away from the screw extruder 13 of the spinneret one 6, wherein the spinneret one 6 is provided with a central port one 8 and an extension port one 9 communicated with the central port one 8, and the spinneret two 7 is provided with a central port two 10 and an extension port two 11 communicated with the central port two 10, in the initial state, the central port one 8 and the central port two 10 correspond, and the extension port one 9 and the extension port two 11 correspond.

[0039] As shown in the figure, Figures 4-10As shown, the mounting seat 5 is provided with a connecting port 17 corresponding to the spinneret two 7, and the spinneret two 7 is provided with a gear 16 which is exposed through the connecting port 17, wherein the screw extruder 13 is provided with a cylinder 14 through bolts, and the piston end of the cylinder 14 is provided with a rack 15 which is engaged with the gear 16, when the cylinder 14 is actuated, the gear 16 is rotated by the movement of the rack 15, and the spinneret two 7 is rotated as a whole, so that the extension port one 9 and the extension port two 11 can be staggered.

[0040] As shown in Figure 7 , Figure 8 and Figure 10 , the spinneret one 6 extends a plurality of guide protrusions 12, and each two adjacent guide protrusions 12 have an extension port one 9, and the guide protrusions 12 extend into the center port two 10, so that the raw material of the core yarn is sprayed out of the spinneret one 6 and the spinneret two 7 along the guide protrusions 12, and the rotation of the spinneret two 7 does not drive the core yarn to rotate, ensuring the forming effect of the core yarn.

[0041] S2, the raw material of the heated core yarn is extruded through the screw extruder 13, and the core yarn in a molten state is formed through the spinneret one 6 and the spinneret two 7, and the core yarn is sprayed out through the center port one 8 and the extension port one 9, and then sprayed out through the center port two 10 and the extension port two 11, realizing the forming of the center part 1 and the protrusion 2, after a period of time, the spinneret two 7 is rotated by the cylinder 14, so that the extension port one 9 and the extension port two 11 are staggered, and after the core yarn is sprayed out through the center port one 8 and the extension port one 9, it can only be sprayed out through the center port two 10 and the space between the two adjacent guide protrusions 12, realizing the forming of the center part 1 and the protrusion 3, and the core yarn is formed by repeated rotation of the spinneret two 7;

[0042] S3, the core yarn leaving the spinneret two 7 is cooled and shaped;

[0043] S4, the core yarn obtained in S3 and the wrapping yarn 4 are processed by a composite twisting machine, so that the wrapping yarn 4 is spirally wrapped outside the core yarn to form a covered yarn.

[0044] As described above, the breathable bamboo joint covered yarn and the preparation process provided by the embodiment can increase the forming effect of the bamboo joint, ensure the uniform size of the bamboo joint, and increase the forming efficiency.

[0045] The above description is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical solutions falling within the scope of the present application shall be considered as falling within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A breathable slubbing covering yarn characterized in that: The core yarn and the wrapping yarn (4) are provided, the wrapping yarn (4) is spirally wrapped outside the core yarn, the core yarn is profiled fiber, the core yarn comprises a center part (1) and a plurality of extension parts, the extension parts are connected with the center part (1), the plurality of extension parts are arranged at intervals along the length direction of the center part (1), the extension part comprises a plurality of protrusions (2), the plurality of protrusions (2) are arranged on the center part (1) at intervals in a ring shape with the center part (1) as the center, the length direction of the protrusion (2) and the diameter direction of the center part (1) form an angle, and the wrapping direction of the wrapping yarn (4) is consistent with the opening direction of the angle between the protrusion (2) and the center part (1).

2. The air permeable slub yarn of claim 1, wherein: The protrusions (2) are arranged on the extension part.

3. The process for making a venting slub yarn according to claim 1, wherein: The method comprises the following steps: S1, the raw material of the core yarn is added to the screw extruder (13), and the screw extruder (13) heats the raw material of the core yarn; S2, the heated core yarn raw material is extruded through the screw extruder (13), the core yarn in a molten state is formed through the spinneret one (6) and the spinneret two (7), and the extension part of the core yarn is intermittently blocked by relatively rotating the spinneret two (7) and the spinneret one (6); S3, the core yarn leaving the spinneret two (7) is cooled and shaped; S4, the core yarn obtained in S3 and the wrapping yarn (4) are processed through the composite twisting machine, so that the wrapping yarn (4) is spirally wrapped outside the core yarn to form the covered yarn.

4. The process for making a venting slub yarn according to claim 3, wherein: The mounting seat (5) is fixedly installed at the discharge port of the screw extruder (13), the spinneret one (6) is fixedly connected in the mounting seat (5), the spinneret two (7) is rotatably connected in the mounting seat (5), the spinneret two (7) is located on the side of the spinneret one (6) away from the screw extruder (13), the spinneret one (6) is provided with the center port one (8) and the extension port one (9) communicated with the center port one (8), and the spinneret two (7) is provided with the center port two (10) and the extension port two (11) communicated with the center port two (10).

5. The process for making a venting slub yarn according to claim 4, wherein: The mounting seat (5) is provided with the connecting port (17) corresponding to the spinneret two (7), the spinneret two (7) is provided with the gear (16), the screw extruder (13) is provided with the air cylinder (14), the piston end of the air cylinder (14) is provided with the rack (15), and the rack (15) and the gear (16) are engaged.

6. The process for making a venting slub yarn according to claim 4, wherein: The spinneret one (6) extends a plurality of guide protrusions (12), and each two adjacent guide protrusions (12) are provided with an extension port one (9), and the guide protrusion (12) extends into the center port two (10).

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