Triangular profiled fiber for carpet

Abstract

The utility model discloses a triangular profiled fiber for a carpet, which comprises a fiber strip, a filling hole extending along the length direction of the fiber strip is arranged on the fiber strip, and the cross section of the circumferential outer edge of the fiber strip is triangular; the supporting strip is of an elastic sparse hole structure, the supporting strip extends in the first direction and is fixed in the filling hole in a filling mode, and the two ends of the supporting strip are flush with the two ends of the fiber strip. According to the triangular special-shaped fiber for the carpet, the filling holes of the fiber strips are fixedly filled through the supporting strips of the sparse hole structures, on one hand, the softness of the triangular special-shaped fiber is guaranteed, the fiber strips can be supported through the supporting strips, the structural stiffness of the fiber is guaranteed, and flattening deformation is avoided; therefore, the fluffy air permeability and the heat insulation property of the fiber are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of carpet fiber, especially to a triangular special-shaped fiber for carpet. BACKGROUND

[0002] The cross section of the triangular special-shaped fiber is triangular, and this unique form gives the fiber a series of special optical and physical properties. Under the irradiation of light, the three geometric faces of the fiber will refract and disperse light like a triangular prism, thereby producing dazzling and colorful optical effects. Compared with the fiber with a circular cross section, the triangular special-shaped fiber has significantly improved anti-pilling performance. Due to the enhanced cohesion, the occurrence of fuzz and pilling is greatly reduced, improving the durability of the fabric. Moreover, the special shape of the triangular special-shaped fiber also enhances the adhesion between fibers, optimizing the loftiness and air permeability of the fiber. The triangular special-shaped fiber has been widely used in textiles such as carpets.

[0003] In the prior art, Chinese patents with application numbers CN202311290390.6, CN202221594934.9, and CN201020525303.2 disclose various triangular special-shaped fibers. The cross section of the fiber is triangular, and a hollow structure is provided, so that the triangular special-shaped fiber can maintain a certain loftiness and compression resistance, thereby improving the toughness of the fiber and prolonging the service life of the fiber.

[0004] However, after designing the triangular special-shaped fiber into a hollow structure, it is difficult to simultaneously consider the warmth retention, air permeability, strength, and wear resistance of the fiber. The main reason is that although the hollow degree (i.e., the ratio of the cross-sectional area of the hollow to the cross section of the triangular fiber) can provide good warmth retention and air permeability, the air in the cavity can act as a kind of thermal insulation material to reduce heat transfer, and the cavity can enhance the elasticity of the fiber, making the carpet more soft and comfortable. However, a too high hollow degree will make the fiber wall too thin, resulting in a decrease in the strength and wear resistance of the fiber. Moreover, a too high hollow degree may cause the fiber to be easily crushed or flattened, reducing the stiffness and service life of the carpet. When the hollow degree is too low, the loftiness, air permeability, and warmth retention performance of the fiber will be affected.

[0005] Therefore, it is necessary to improve the triangular special-shaped fiber for carpet in the prior art. UTILITY MODEL CONTENT

[0006] The utility model aims to overcome the defects in the prior art and provide a triangular special-shaped fiber for carpet that takes into account the loftiness, warmth retention, strength, and stiffness.

[0007] To achieve the above technical effects, the technical solution of the utility model is as follows: a triangular special-shaped fiber for carpet, comprising:

[0008] The fiber strip is provided with filling holes extending along the length direction of the fiber strip, and the cross-sectional shape of the circumferential edge of the fiber strip is triangular.

[0009] The support strip is a porous structure with elasticity, extends along the first direction and is fixedly filled in the filling holes, and the two ends of the support strip are flush with the two ends of the fiber strip.

[0010] Preferably, in order to facilitate the formation of the triangular profiled fiber, the circumferential edge of the support strip is adjacent to the circumferential edge of the fiber strip.

[0011] Preferably, in order to ensure the elasticity and porous property of the support strip and ensure the fluffy, breathable, heat-insulating and heat-keeping performance of the support strip, the support strip is a sponge strip.

[0012] Preferably, in order to ensure the same physical performance of the triangular fiber in each direction, the cross-sectional center of the support strip is coincident with the cross-sectional center of the support strip.

[0013] Preferably, in order to further ensure the same physical performance of the triangular fiber in each direction, the cross-sectional shape of the support strip is the same as the cross-sectional shape of the fiber strip.

[0014] Preferably, in order to facilitate the formation, the support strip is connected with the fiber strip through co-extrusion.

[0015] Preferably, in order to facilitate the extrusion formation of the support strip, the ratio of the cross-sectional side length of the circumferential edge of the support strip to the cross-sectional side length of the circumferential edge of the fiber strip is 4: (5-6).

[0016] Preferably, in order to strengthen the flash effect, the fiber strip is further provided with a reflective layer.

[0017] Preferably, in order to further strengthen the flash effect, the reflective layer is a transparent and degradable polymer film.

[0018] Preferably, in order to ensure the energy saving and environmental protection of the product, the fiber strip is a renewable polyester fiber strip.

[0019] In summary, compared with the prior art, the triangular profiled fiber for the carpet of the present application is fixedly filled in the filling holes through the porous structure support strip, on the one hand, the softness of the triangular profiled fiber is ensured, the fiber strip is supported through the support strip, the structure stiffness of the fiber is ensured, and the deformation caused by compression is avoided, on the other hand, the porous structure support strip itself has the property of breathability, and thus the fluffy, breathable, heat-insulating and heat-keeping performance of the fiber is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the first embodiment of the present application.

[0021] Figure 2 is a structural schematic view of a second embodiment of the utility model, and

[0022] Figure 3 is a structural schematic view of a third embodiment of the utility model, and

[0023] In the drawing: 1, fiber strip; 2, support strip; 3, reflecting layer. DETAILED DESCRIPTION

[0024] The specific implementation of the utility model will be further described below in combination with the drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, and cannot be used to limit the protection scope of the utility model.

[0025] First embodiment

[0026] As Figure 1 indicated, the triangular special-shaped fiber for carpet of the first embodiment of the utility model comprises:

[0027] The fiber strip 1 is provided with a filling hole extending along the length direction of the fiber strip 1, and the cross-sectional shape of the circumferential outer edge of the fiber strip 1 is triangular.

[0028] The support strip 2 is a porous structure with elasticity, extends along the first direction and is fixedly filled in the filling hole, and the two ends of the support strip 2 are flush with the two ends of the fiber strip 1.

[0029] In the triangular special-shaped fiber, the cross-sectional shape of the circumferential outer edge of the fiber strip 1 is triangular, so that the fiber as a whole has a small prism-like light splitting effect, increases the area, reduces the transparency of the carpet fabric, and improves the deficiency of easy pilling of the fiber. Furthermore, different from the prior art, the support strip 2 with elasticity and porous structure is fixedly filled in the filling hole of the fiber strip 1. On the one hand, the elasticity of the fiber as a whole is retained to enhance the comfort of the carpet, and the carpet fabric woven by the embodiment has good loft and air permeability, and the support strip 2 in the interior can realize good thermal insulation performance through the porous structure of the support strip 2. On the other hand, the support strip 2 can support the fiber strip 1 from the inside, and after the triangular special-shaped fiber is extruded from the outside, the fiber as a whole can be restored to the original state through the support strip 2, avoiding being crushed, preventing deformation, ensuring the overall structure stiffness and certain structural strength of the composite fiber, and enhancing the wear resistance of the fiber as a whole through the support strip 2.

[0030] In the embodiment, the cross-sectional shape of the support strip 2 is circular, and in order to ensure the elasticity and certain heat insulation performance of the support strip 2, the support strip 2 is a sponge strip. The support strip 2 and the fiber strip 1 can be connected by using an injection filling method, and a sponge material is injected into the filling hole of the fiber strip 1 in a liquid state by using an injection device. After injection, the sponge material is solidified in the filling hole by heating or chemical reaction to form the support strip 2 with elastic and porous structure characteristics.

[0031] In order to ensure that the physical performance of the fiber is consistent in all directions, the cross-sectional center of the support strip 2 coincides with the cross-sectional center of the support strip 2.

[0032] Further improvement is that the fiber strip 1 is a renewable polyester fiber strip 1.

[0033] The fiber strip 1 of the embodiment is a renewable polyester fiber strip 1, that is, is made of renewable polyester fiber material. Compared with other types of fiber materials, the renewable polyester fiber can be made by recycling, so that the cost is low, the pollution to the environment is reduced, a large amount of production raw materials is saved, and the renewable polyester fiber has high strength and wear resistance, and also has good moisture absorption and softness, and the touch is more comfortable.

[0034] Second embodiment

[0035] As shown in Figure 2 The triangular special-shaped fiber for the carpet of the second embodiment of the utility model is based on the first embodiment, and the difference lies in that the cross-sectional shape of the support strip 2 is the same as that of the fiber strip 1.

[0036] The cross-sectional shape of the support strip 2 is the same as that of the fiber strip 1, and the centers of the two coincide, and the three edges of the cross section of the support strip 2 are parallel to the three edges of the cross section of the fiber strip 1. In this way, compared with the support strip 2 with a circular cross section, the consistency of the physical performance of the triangular special-shaped fiber in all angle directions can be further ensured.

[0037] Further improvement is that the circumferential outer edge of the support strip 2 is adjacent to the circumferential outer edge of the fiber strip 1. Specifically, the ratio of the cross-sectional edge length of the circumferential outer edge to the cross-sectional edge length of the circumferential outer edge of the fiber strip 1 is 4:5. After the above limitation is adopted, the size of the filling hole of the fiber strip 1 is expanded, the contact area of the fiber strip 1 and the support strip 2 is facilitated to be increased, the connection between the two is reinforced, the cross-sectional area of the support strip 2 is increased, and the air permeability and the fluffiness of the triangular special-shaped fiber are ensured.

[0038] Further improvement is that the support strip 2 and the fiber strip 1 are connected by co-extrusion.

[0039] Adopt this mode, strengthen the stability of support strip 2 and the connection of fiber strip 1, and the triangular profiled fiber is once extruded, specifically, adopt co-extrusion technology, melt state of sponge material and fiber material are extruded simultaneously, so that the sponge material is formed into the support strip 2, and the fiber material is formed into the fiber strip 1 which is fixedly sleeved outside the support strip 2 and is a hollow structure, so that the fiber strip 1 and the support strip 2 are integrally formed into the triangular profiled fiber of the embodiment.

[0040] Third embodiment

[0041] As Figure 3 shown, the triangular profiled fiber for carpet of the third embodiment of the utility model, based on the second embodiment, the difference lies in: fiber strip 1 outside still fixedly sleeved with reflection layer 3.

[0042] By setting reflection layer 3, the reflection of light can be further enhanced, the light reflectivity is improved, a special flashing effect is formed, dazzling colors are produced under the irradiation of light, silk luster is presented, so that the carpet can add a unique visual charm, so that the carpet is more bright and rich in visual quality.

[0043] Further improvement is that the reflection layer 3 is a transparent and degradable polymer film.

[0044] After using the transparent and degradable polymer film as the reflection layer 3, the reflection layer 3 has certain light projection and reflectivity, when light irradiates on the outer surface of the reflection layer 3, part of it is directly reflected, and the other part is projected and irradiated on the surface of the fiber strip 1, and the reflection occurs on the surface of the fiber strip 1, further enhancing the flashing effect, and the reflection layer 3 can also act as a protective layer of the fiber strip 1, enhancing the wear resistance of the fiber strip 1. The polymer film preferably uses environmentally friendly and degradable materials, such as PLA or PHA.

[0045] The above only is the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled person in the art, without departing from the technical principle of the utility model, can make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the utility model.

Claims

1. A carpet triangular profiled fiber, characterized by, Comprise: a fiber strip (1) provided with filling holes extending along the length of the fiber strip (1), the cross-sectional shape of the circumferential edge of the fiber strip (1) being triangular; a support strip (2) of a porous structure, the support strip (2) extending in a first direction and being fixedly filled in the filling holes, the two ends of the support strip (2) being flush with the two ends of the fiber strip (1).

2. The triangular profiled fiber for a carpet according to claim 1, characterized by: The circumferential edge of the support strip (2) is immediately adjacent to the circumferential edge of the fiber strip (1).

3. The triangular profiled fiber for a carpet according to claim 1, wherein: The support strip (2) is a sponge strip.

4. The triangular profiled fiber for a carpet according to claim 3, characterized by: The cross-sectional center of the support strip (2) coincides with the cross-sectional center of the support strip (2).

5. The triangular profiled fiber for a carpet according to claim 4, characterized by: The cross-sectional shape of the support strip (2) is the same as the cross-sectional shape of the fiber strip (1).

6. The triangular profiled fiber for a carpet according to claim 5, wherein: The support strip (2) is connected to the fiber strip (1) by co-extrusion.

7. The triangular profiled fiber for carpets according to claim 6, characterized by: The ratio of the cross-sectional side length of the circumferential edge of the support strip (2) to the cross-sectional side length of the circumferential edge of the fiber strip (1) is 4:(5-6).

8. The triangular profiled fiber for a carpet according to claim 1, wherein: The fiber strip (1) is further fixedly sleeved with a reflective layer (3).

9. The triangular profiled fiber for carpets according to claim 8, characterized by: The reflective layer (3) is a transparent and degradable polymer film.

10. The triangular profiled fiber for carpets according to any one of claims 1 to 9, characterized by: The fiber strip (1) is a renewable polyester fiber strip (1).

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