A four-way stretch thermal fabric

Abstract

The utility model discloses a four -sided elastic warmth -preserving fabric, and the fabric is formed by the warp and weft weaving, and the warp and weft interweave into double layer organization, and the weft includes surface layer weft and inner layer weft, and the surface layer weft and warp all adopt the air covering yarn of spandex as core yarn, and the opposite side of the fabric is formed fluff after the wool pulling treatment. The utility model integrates the warmth -preserving function and four -sided elastic characteristic in single fabric structure, can provide reliable elastic recovery performance, and the elasticity is adhered to the body, adapts to the multidirectional movement of human body, realizes the lasting warmth -preserving effect, satisfies the elasticity demand and warmth -preserving demand of professional mountaineering sportswear, and simultaneously avoids the problems, such as the thickness of traditional mountaineering fabric, the inner layer easy to shift.

Description

Technical Field

[0001] This utility model relates to the field of mountaineering fabric technology, and in particular to a four-way elastic thermal insulation fabric. Background Technology

[0002] In recent years, with the popularization of outdoor sports and the professional development of mountaineering equipment, mountaineering clothing fabrics have faced higher requirements in terms of functionality. An ideal mountaineering fabric must not only be able to withstand the harsh cold environment of high mountains, but also be able to adapt to the large range of limb extension and dynamic activities in complex terrain during mountaineering.

[0003] Traditional mountaineering fabrics often employ a double-layer composite structure, with an outer layer made of windproof and waterproof stiff fabric and an inner layer of fleece or down for insulation. While this design meets basic warmth requirements, it has significant limitations: firstly, the composite structure results in a thick and stiff fabric, hindering movement flexibility; secondly, repeated bending and stretching can lead to problems such as seam separation and inner layer shifting; and thirdly, insufficient breathability can cause stuffiness during strenuous activity. To address these issues, some mountaineering fabrics incorporate an insulating film or short fleece layer on the inside of an elastic fabric to simultaneously meet the needs for elasticity and warmth, but these also suffer from problems such as a thicker fabric and the inner layer shifting. Utility Model Content

[0004] The purpose of this invention is to provide a four-way elastic thermal fabric with better elasticity and warmth retention.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A four-way stretch thermal fabric, the fabric being woven from warp and weft yarns, the warp and weft yarns being interwoven into a double-layer structure; the weft yarns include an outer weft yarn and an inner weft yarn, the outer weft yarn and the warp yarns both being air-covered yarns with spandex as the core yarn, and the reverse side of the fabric being treated with a napped process to form a pile.

[0007] Furthermore, the outer weft yarn and the warp yarn interweave to form a plain weave fabric; the area where the inner weft yarn and the warp yarn interweave includes a plain weave area and a float area, the inner weft yarn and the warp yarn interweave in the plain weave area in a plain weave fabric manner, and multiple parallel inner weft yarn floats are formed in the float area.

[0008] Furthermore, the minimum weave cycle of the fabric is formed by the interlacing of m warp yarns and n weft yarns; the first to a weft yarns are the surface weft yarns, and the (a+1) to n weft yarns are arranged in a cyclical pattern of 1 surface weft yarn and 1 inner weft yarn; the float area is located within the interlacing range of the first to b warp yarns and the (a+1) to n weft yarns, and the plain weave area is located within the interlacing range of the (b+1) to m warp yarns and the (a+1) to n weft yarns; wherein m, n, a, and b are all positive integers, and 1 < a < n, 1 < b < m.

[0009] Preferably, in the minimum weft loop, m is 54, n is 60, a is 20, b is 42, and the odd-numbered weft yarns from (a+1) to n are the outer weft yarns, and the even-numbered weft yarns are the inner weft yarns.

[0010] Preferably, the inner weft yarn is tufted to form a pile on the float line, and the float line of the inner weft yarn has 30 to 60 weaving points.

[0011] Preferably, the warp density of the fabric is 50-60 yarns / cm and the weft density is 55-65 yarns / cm.

[0012] Preferably, the air-coated yarn is made of 75D / 72F polyester stretch textured yarn covering 40D spandex.

[0013] Preferably, the air knots of the air-covered yarn are 140-150 points / meter, and the draw ratio of the spandex is 3.0-3.5.

[0014] Preferably, the inner weft yarn is a ply yarn formed by combining S-twist yarn and Z-twist yarn with the same twist, and the specification of the inner weft yarn is 300D / 288F, and both the S-twist yarn and the Z-twist yarn are polyester DTY yarn.

[0015] Preferably, both the warp and weft yarns are semi-dull yarns.

[0016] This utility model has the following beneficial effects:

[0017] 1. This fabric is a double-layered structure woven from warp and weft yarns. The outer weft and warp yarns are both air-covered yarns with spandex as the core yarn. The warp and weft yarns are combined in both directions to give the fabric four-way elasticity, allowing it to fit the body elastically and adapt to multi-directional human movement.

[0018] 2. This fabric utilizes the fluffy structure of air-enclosed yarns combined with reverse fleece treatment to create a pile that significantly enhances warmth. It integrates warmth and four-way stretch within a single fabric structure, effectively avoiding the problems of traditional mountaineering fabrics being heavy and having inner layers that easily shift, while also meeting the elasticity and warmth requirements of professional mountaineering apparel. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the four-way elastic thermal insulation fabric of this utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of the four-way elastic thermal insulation fabric of this utility model.

[0021] Figure 3 This is a side view structural diagram of the four-way elastic thermal insulation fabric of this utility model.

[0022] Explanation of main component symbols: 1. Plain area; 2. Floating area. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1-3 As shown, this utility model discloses a four-way stretch thermal insulation fabric. The fabric is woven from warp and weft yarns, forming a double-layer structure. The weft yarns include an outer layer and an inner layer. Both the outer layer and the warp yarns are air-covered yarns with spandex as the core, possessing excellent elasticity. The elasticity in both warp and weft directions gives the fabric four-way stretch, allowing it to conform to the body and adapt to multi-directional movement, meeting the elasticity requirements of professional mountaineering apparel.

[0025] Meanwhile, the air-encased yarn's fluffy structure traps still air, effectively blocking heat conduction and providing a certain degree of insulation, while allowing moisture to escape, preventing stuffiness and contributing to the fabric's lightweight nature. Furthermore, a napped finish on the reverse side of the fabric further enhances its warmth, enabling it to meet the insulation requirements of professional mountaineering apparel.

[0026] Both the warp and weft yarns mentioned above are semi-dull yarns, resulting in a fabric with a soft luster that is less likely to reflect sunlight and disturb users in outdoor environments. The air-covered yarn, consisting of 75D / 72F polyester textured yarn wrapped around 40D spandex in both the warp and outer weft, provides stable elastic support and gives the fabric a certain degree of stiffness. The air-covered yarn has an air knot count of 140–150 points / meter, and the spandex has a draw ratio of 3.0–3.5, preferably 3.2, to ensure the strength of the core yarn.

[0027] The inner weft yarn is a plied yarn formed by combining S-twist and Z-twist yarns of the same twist, resulting in a non-torsional (i.e., torque-free) plied yarn. The inner weft yarn specification is 300D / 288F, and both the S-twist and Z-twist yarns are polyester DTY yarns. The strength and uniformity of the plied yarn make the inner weft yarn more resistant to the mechanical force of napping, resulting in a higher napping success rate and more even fiber separation during napping. The resulting pile is evenly distributed, aesthetically pleasing, and less prone to falling off. Therefore, the pile formation in this fabric is primarily achieved by napping the floats of the inner weft yarn.

[0028] The inner weft yarn float length is 30-60 weft points, making it relatively easy to handle the pile. The warp density of the fabric is set at 50-60 yarns / cm, preferably 55.7 yarns / cm, and the weft density is 55-65 yarns / cm, preferably 57.1 yarns / cm, to further ensure that the formed pile does not fall off.

[0029] This fabric is woven using a multi-arm loom. Its surface weft and warp yarns interweave to form a plain weave, resulting in a smooth and durable fabric. The inner layer weft and warp yarns interweave in two areas: a plain weave area 1 and a float area 2. In plain weave area 1, the inner weft and warp yarns also interweave in a plain weave pattern to enhance structural stability and smoothness. Float area 2 features multiple parallel inner weft floats, which can be gathered to form a checkered, piled area.

[0030] Specifically, the minimum weave cycle of the fabric consists of m warp yarns and n weft yarns interwoven. The first a weft yarns are the surface weft yarns, and the (a+1) to n weft yarns are arranged in a cycle of one surface weft yarn and one inner weft yarn. Float area 2 is located within the interweaving range of the first b warp yarns and the (a+1) to n weft yarns, while plain weave area 1 is located within the interweaving range of the (b+1) to m warp yarns and the (a+1) to n weft yarns. Here, m, n, a, and b are all positive integers, and 1 < a < n, 1 < b < m. Adjusting these four parameters allows for the creation of float areas of different sizes.

[0031] In this embodiment, the minimum weave cycle has m = 54, n = 60, a = 20, and b = 42. The odd-numbered weft yarns from (a+1) to nth are the outer weft yarns, and the even-numbered weft yarns are the inner weft yarns. That is, the minimum weave cycle of the fabric is formed by 54 warp yarns and 60 weft yarns. The 1st to 20th weft yarns are the outer weft yarns, and among the 21st to 60th weft yarns, the odd-numbered weft yarns are the outer weft yarns, and the even-numbered weft yarns are the inner weft yarns. Float area 2 is the area where the 1st to 42nd warp yarns and the inner weft yarns interweave, and plain weave area 1 is the area where the 43rd to 54th warp yarns and the inner weft yarns interweave.

[0032] In summary, this fabric integrates warmth and four-way stretch within a single fabric structure, simultaneously meeting the elasticity and warmth requirements of professional mountaineering apparel. It effectively avoids the problems of traditional mountaineering fabrics being heavy and having inner layers that easily shift, while also being breathable and not stuffy to wear.

[0033] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims are within the scope of protection of the present invention.

Claims

1. A four-way stretch thermal insulation fabric, characterized in that: The fabric is woven from warp and weft yarns, and the warp and weft yarns are interwoven into a double-layer structure; the weft yarns include an outer weft yarn and an inner weft yarn, and both the outer weft yarn and the warp yarns are air-covered yarns with spandex as the core yarn, and the reverse side of the fabric is treated with a napping process to form a pile.

2. The four-way elastic thermal fabric as described in claim 1, characterized in that: The outer weft yarn and the warp yarn interweave to form a plain weave fabric; the area where the inner weft yarn and the warp yarn interweave includes a plain weave area and a float area. The inner weft yarn and the warp yarn interweave in the plain weave area in a plain weave pattern, and multiple parallel inner weft yarn floats are formed in the float area.

3. The four-way elastic thermal fabric as described in claim 2, characterized in that: The minimum weave cycle of the fabric is formed by the interlacing of m warp yarns and n weft yarns; the first to a weft yarns are the surface weft yarns, and the (a+1) to n weft yarns are arranged in a cycle of 1 surface weft yarn and 1 inner weft yarn; the floating area is located within the interlacing range of the first to b warp yarns and the (a+1) to n weft yarns, and the plain weave area is located within the interlacing range of the (b+1) to m warp yarns and the (a+1) to n weft yarns; wherein m, n, a, and b are all positive integers, and 1 < a < n, 1 < b < m.

4. The four-way stretch thermal fabric as described in claim 3, characterized in that: In the minimum weft loop, m is 54, n is 60, a is 20, and b is 42. The odd-numbered weft yarn from (a+1) to n is the outer weft yarn, and the even-numbered weft yarn is the inner weft yarn.

5. The four-way stretch thermal fabric as described in any one of claims 1-4, characterized in that: The inner weft yarn is puffed up to form a pile, and the inner weft yarn float has 30 to 60 weaving points.

6. The four-way stretch thermal fabric as described in claim 1, characterized in that: The fabric has a warp density of 50-60 yarns / cm and a weft density of 55-65 yarns / cm.

7. The four-way stretch thermal fabric as described in claim 1, characterized in that: The air-coated yarn is made of 75D / 72F polyester stretch textured yarn wrapped with 40D spandex.

8. The four-way stretch thermal fabric as described in claim 1, characterized in that: The air-covered yarn has 140-150 air nodes per meter, and the spandex has a draw ratio of 3.0-3.

5.

9. The four-way stretch thermal fabric as described in claim 1, characterized in that: The inner weft yarn is a ply yarn formed by combining S-twist yarn and Z-twist yarn with the same twist, and the specification of the inner weft yarn is 300D / 288F. Both the S-twist yarn and the Z-twist yarn are polyester DTY yarn.

10. The four-way stretch thermal fabric as described in claim 1, characterized in that: Both the warp and weft yarns are semi-dull yarns.

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