A double air layer thermal fabric

Abstract

The utility model relates to the field of textile, concretely relates to a double air layer warm -keeping fabric, adopts six -way weaving, first way uses dacron to weave: all high needle knitting tuck, second way, fifth way use dacron and viscose blended yarn and spandex weave: all loop of high needle and low needle, third way, sixth way use dacron and viscose blended yarn and spandex weave: all loop of high needle and low needle, fourth way adopts dacron to weave: all low needle knitting tuck of upper needle and lower needle. Through six -way weaving, the fabric forms the outer layer - middle layer - inner layer structure, and the wool is added to the outer layer and inner layer of the fabric, the outer layer adopts dacron, viscose, wool blended yarn, the inner layer adopts dacron, viscose blended yarn, and the middle layer connection adopts hollow dacron filament, realizes double warm -keeping effect from material composition and air layer structure.

Description

Technical Field

[0001] This utility model relates to the textile field, specifically to a double-air-layer thermal insulation fabric. Background Technology

[0002] As living standards improve, more and more consumers are not only focusing on style and design when it comes to clothing, but also on the comfort of the fabric. Especially in the trend of sports and leisure, consumers are more enthusiastic about breathable, lightweight and warm fabrics. The unique structure of air layer fabrics has the characteristics of being both warm and lightweight. The use of warm and lightweight air layer fabrics in autumn and winter has become a trend. Utility Model Content

[0003] A double-layered thermal insulation fabric employs a six-way knitting method. The first way is woven with polyester: all stitches are high-needle knitting in loops. The second and fifth ways are woven with polyester / viscose blended yarn and spandex: all stitches, both high and low needles, are looped. The third and sixth ways are woven with polyester / viscose / wool blended yarn and spandex: all stitches, both high and low needles, are looped. The fourth way is woven with polyester: all stitches, both high and low needles, are looped.

[0004] Furthermore, the polyester in the first and fourth passes is hollow polyester.

[0005] Furthermore, the polyester specification is 50D / 48F, the polyester / viscose blended yarn specification is 40S, the polyester / viscose / wool blended yarn specification is 40S, and the spandex specification is 20D.

[0006] Polyester-viscose blended yarn is a compact Sirospun yarn with a Z-twist twist; polyester-viscose-wool blended yarn is a compact Sirospun yarn with a Z-twist twist.

[0007] Furthermore, the polyester in the first and fourth threads is antibacterial polyester.

[0008] Furthermore, all selected yarns are colored spun yarns.

[0009] The fabric produced by the above method has the following beneficial effects: 1. Through six-way weaving, the fabric forms an outer layer-middle layer-inner layer structure. Wool is added to both the outer and inner layers of the fabric. The outer layer uses polyester, viscose and wool blended yarn, the inner layer uses polyester and viscose blended yarn, and the middle layer is connected with hollow polyester filaments. The material composition and air layer structure achieve a double warmth retention effect.

[0010] 2. The second, third, fourth and fifth sections all use wool-blend yarns, which utilize the crimp and micro-hollow structure of wool fibers to store air and improve the warmth of the fabric.

[0011] 3. Hollow polyester is used for the polyester connecting yarn in the fabric to prevent heat loss by utilizing the hollow structure of polyester. Attached Figure Description

[0012] Figure 1 This is a diagram of the tissue coil of this utility model.

[0013] Figure 2 The triangular diagram of this utility model.

[0014] In the diagram: F1 is the first path, F2 is the second path, ..., F6 is the sixth path; ∧ is a circled triangle; — is a floating triangle; ∩ is a clustered triangle. Detailed Implementation

[0015] The present invention will be further explained below with reference to the embodiments. Example

[0016] like Figure 1 As shown, a double-layer air-layer thermal insulation fabric is knitted using a six-way weave. The first way is entirely tucked in high-needle stitches, using 50D hollow polyester. The second way consists of loops of both high and low-needle stitches, using 40S polyester / viscose blend yarn and 20D spandex, knitted together. The third way consists of loops of both high and low-needle stitches, using 40S polyester / viscose / wool blend yarn and 20D spandex. The fourth way consists of loops of both high and low-needle stitches, knitted together, using 50D hollow polyester. The fifth way is the same as the second way, with loops of both high and low-needle stitches, knitted together, using 40S polyester / viscose blend yarn and 20D spandex, knitted together. The sixth way is the same as the third way, with loops of both high and low-needle stitches, knitted together, using 40S polyester / viscose / wool blend yarn and 20D spandex.

[0017] Using colored yarn for weaving can further improve the color fastness of the fabric. The yarn dyeing process is as follows: unwinding - dyeing - steaming - drying - winding - weaving - pre-setting - washing - setting - inspection.

[0018] (1) Pretreatment: The pretreatment of yarn mainly includes impurity removal and scouring. Impurities and stains on the yarn are cleaned and removed to ensure the luster and purity of the yarn. Alkali boiling is used during scouring. Soda ash is relatively weak and has a good pH buffering capacity. Soda ash (2g / L) and degreasing agent (1g / L) are used for degreasing. The temperature is 75℃ and the time is 20min.

[0019] The dyeing process employed a two-bath method using disperse / reactive dyes. Polyester was dyed with disperse dyes, while viscose and wool were dyed with reactive dyes. The leveling agents included soda ash (0.5 g / L) and dispersant (0.5 g / L), and the auxiliaries included sodium sulfate (46.75 g / L) and soda ash (22 g / L). The dyeing temperature and time were 60℃ for 75 minutes. Post-processing: When setting the fabric, it is first pre-set at 195℃ to initially ensure the fabric width, weight and shrinkage. Then it is washed in a 40℃ water bath. To prevent abrasion, the amount of fabric can be reduced. Finally, it is set at 180℃. The machine speed should be controlled at a moderate level, with appropriate overfeeding to avoid stopping. It should not be too fast to ensure the stability of width, weight and shrinkage, and to avoid problems such as yellowing, uneven color and poor elasticity.

[0020] The thermal insulation performance of the fabric was tested using Method A of GB 11048-89, "Test Methods for Thermal Insulation Performance of Textiles": Flat Plate Constant Temperature Difference Heat Dissipation Method. The thermal insulation rate of the fabric obtained in this embodiment was 43%.

[0021] The above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications or equivalent substitutions that are not inventive and are made by those skilled in the art should be included within the protection scope of this utility model.

Claims

1. A double-air-layer thermal insulation fabric, using a six-way weave, characterized in that: The first row is knitted with polyester: all high-needle stitches are knitted in rounds. The second and fifth rows are knitted with polyester / viscose blended yarn and spandex: all high and low needle stitches are knitted in rounds. The third and sixth rows are knitted with polyester / viscose blended yarn and spandex: all high and low needle stitches are knitted in rounds. The fourth row is knitted with polyester: all low needle stitches are knitted in rounds.

2. The double-air-layer thermal insulation fabric according to claim 1, characterized in that: The polyester is hollow polyester.

3. The double-air-layer thermal insulation fabric according to claim 1, characterized in that: The polyester / viscose blended yarn is a compact Sirospun yarn with a Z-twist twist; the polyester / viscose / wool blended yarn is a compact Sirospun yarn with a Z-twist twist.

4. The double-air-layer thermal insulation fabric according to claim 1, characterized in that: The polyester is 50D / 48F, the polyester / viscose blended yarn is 40S, the polyester / viscose / wool blended yarn is 40S, and the spandex is 20D.

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