Polyester hairiness mixed fiber processing yarn and textile thereof

Abstract

The invention discloses a polyester hairiness mixed fiber processed yarn, the processed yarn contains an elastic yarn and a superfine polyester yarn, the number of hairiness with the length of more than 1mm on the processed yarn is 100-800 / 10m, and the elongation elasticity of the processed yarn after 10 times of stretching recovery is 70-95%. The hairiness of the polyester hairiness mixed fiber processing yarn is equal to that of cotton yarn, and the polyester hairiness mixed fiber processing yarn has cotton-like hand feeling and excellent anti-pilling performance.

Description

Polyester hairy blended yarn and textiles thereof Technical Field

[0001] The invention relates to a polyester hairy blended yarn, in particular to a polyester hairy blended yarn having both cotton-like hand feel and excellent anti-pilling effect, and a textile mainly made from the yarn. Background Art

[0002] Natural cotton fiber has long been popular among consumers for its soft feel, good moisture absorption, excellent dyeability, and resistance to pilling. However, due to the long growth cycle and low yield of natural cotton fiber, coupled with the annual decline in cotton planting area due to economic and social development, global cotton fiber consumption is in short supply. To address this dilemma, fiber researchers have innovatively proposed a method to improve the differentiation level of synthetic polyester filaments to impart certain cotton fiber properties to polyester filaments, thus creating the so-called cotton-like polyester filament technology. Generally speaking, the concept of cotton-like polyester filaments encompasses a wide range of meanings, encompassing not only simply mimicking the appearance of staple cotton yarn, such as hairiness, but more importantly, emulating many of the excellent properties of staple cotton yarn, such as its soft feel, good moisture absorption, and resistance to pilling.

[0003] Chinese invention patent CN108118418A discloses a hairy composite textured yarn composed of high-strength textured yarn and low-strength textured yarn. The hairiness is formed by cutting the low-strength textured yarn during processing. This hairy composite textured yarn has a hairiness comparable to cotton yarn, resulting in a feel similar to cotton. However, during fabric use, the hairiness formed by the low-strength yarn easily detaches due to friction, resulting in a large number of pilling. This deteriorates the fabric's anti-pilling performance, affecting the overall visual effect and wearing comfort of the fabric.

[0004] Chinese invention patent CN111485304A discloses a hairy composite yarn with a fusion effect. This yarn exhibits the same degree of hairiness as cotton yarn. Through a fusion treatment of the yarn surface, it possesses excellent pilling resistance. However, the fusion of the yarn can also make the fabric feel harder, affecting its softness and wearing comfort.

[0005] Summary of the Invention

[0006] The object of the present invention is to provide a polyester hairy mixed yarn having the same degree of hairiness as cotton yarn, a cotton-like feel and excellent anti-pilling performance.

[0007] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0008] A polyester hairy blended yarn contains elastic yarn and ultrafine polyester yarn. The number of hairs with a length of more than 1 mm on the yarn is 100-800 / 10m. The elongation elasticity of the yarn after stretching and recovering 10 times is 70-95%.

[0009] The CF value of the processed yarn is preferably 350-500.

[0010] The single-filament fineness of the ultrafine polyester yarn is preferably 0.30 to 1.0 dtex.

[0011] The present invention also discloses a textile mainly composed of the polyester hairiness blended yarn, and the anti-pilling effect thereof is preferably above level 3.

[0012] The invention prepares a mixed fiber processed yarn with hairiness by making elastic polyester yarn and ultra-fine polyester yarn, so that the processed yarn has both cotton-like feel and excellent anti-pilling effect. DETAILED DESCRIPTION

[0013] The polyester hairy blended yarn of the present invention primarily comprises elastic yarn and ultrafine polyester yarn. During the blending process, a portion of the ultrafine polyester yarn rubs against a hot plate under the high temperature conditions of a hot box. The rubbing action of the processing stack causes the yarn to be severed. The severed portion is exposed on the surface of the processed yarn, forming hairiness, which imparts a cotton-like feel to the yarn. Generally speaking, the more hairiness a blended yarn has, the more cotton-like it feels. However, excessive hairiness can impair the yarn's pilling resistance.

[0014] The principle of pilling of fiber fabrics is explained as follows: the pilling phenomenon of fabrics mainly has the following four stages: the first stage (pilling), when the friction between the fabric and the outside world is greater than the fiber strength, the friction between the fibers or the cohesive force, the fiber ends are pulled out to form loops and fluff, and fluff is generated on the surface of the fabric; the second stage (balling), the process of fiber friction is a process of repeated elongation and recovery, and the fluff exposed on the fiber surface will also move with the fiber and return to its original position, but after multiple stretching, the fiber will fatigue, and the fiber cannot recover after further stretching, resulting in the fluff on the fiber surface gathering and entanglement to form a ball core; the third stage (bulb growth), after the fluff forms a ball core, as the friction continues, the nearby fluff will be entrained, and the pilling will become larger and more numerous; the fourth stage (pilling shedding), when the fabric continues to be rubbed, the fibers connecting the pilling will break due to repeated stretching fatigue and fall off the fabric surface. In summary, there are two main factors that affect the anti-pilling effect of fiber fabrics: the amount of hairiness of the blended yarn and the elongation recovery rate (elongation elasticity) of the blended yarn.

[0015] To achieve a cotton-like feel, the blended yarn must have a sufficient number of hairs. However, an increase in hairiness can lead to a decrease in the resulting textile's pilling resistance. To achieve excellent pilling resistance, the present invention uses elastic yarn in the blended yarn, ensuring that the yarn maintains a modulus of 70-95% after 10 stretch recovery cycles. This allows the yarn to exhibit excellent stretch recovery and fatigue resistance, allowing most hairs to return to their original positions during friction and preventing them from forming balls. If the yarn's modulus is less than 70%, the yarn's stretch recovery and fatigue resistance are poor, and the pulled hairs cannot return to their original positions. The hairs aggregate and tangle, forming balls. Subsequent friction causes a large number of pills to form, resulting in a decrease in the fabric's pilling resistance. When the yarn's modulus is higher than 95%, the yarn's overall elastic recovery is too great, losing the cottony feel brought by the hairiness, significantly reducing the hand feel.

[0016] By controlling the elastic elongation of the processed yarn within the range of 70% to 95%, the present invention maintains a good anti-pilling effect even when the number of hairiness on the processed yarn reaches 800 pieces / 10m. However, the number of hairiness on the processed yarn should not be too high, otherwise, even if the processed yarn has elasticity, it will not effectively reduce the formation of pilling. To obtain a blended processed yarn with both good hand feel and anti-pilling effect, the number of hairiness per 1mm length on the processed yarn is preferably 200-700 pieces / 10m, and more preferably 200-400 pieces / 10m.

[0017] The hairiness in the polyester-hairy blended yarn is primarily generated by the ultrafine polyester yarn. Therefore, if the single filament fineness of the ultrafine polyester yarn is too large, hairiness generation becomes difficult, and the cotton-like feel of the yarn and subsequent fabrics is also reduced. On the other hand, if the single filament fineness of the ultrafine polyester yarn is too small, spinning becomes difficult. Therefore, the single filament fineness of the ultrafine polyester yarn of the present invention is preferably 0.30 to 1.00 dtex.

[0018] Furthermore, the entanglement of polyester hairy blended yarn also affects its anti-pilling effect. When the CF value (intertwining degree) of the processed yarn is too low, the cohesion of the monofilaments in the processed yarn is poor, and the monofilaments on the surface of the fabric are easily pulled out during friction, forming clumps and pilling. When the CF value of the processed yarn is too high, while it helps the fabric's anti-pilling effect, the overall fluffiness of the yarn is reduced, and the cotton-like effect is lost. Excessive intertwining may also cause color spots on the fabric during the dyeing process. The CF value of the polyester hairy blended yarn of the present invention is preferably 350-500, and more preferably 400-450.

[0019] The fiber-forming polymer of the ultrafine polyester yarn can be any existing polyester compound, such as polyethylene terephthalate (PET), polypropylene terephthalate (PTT), polybutylene terephthalate (PBT), or a low-viscosity polyester compound, or a modified polyester compound such as a cationic dyeable, atmospheric pressure dispersion dyeable, hygroscopic, flame-retardant, or highly colorable polyester. Considering the ease of hairiness formation and anti-pilling performance, the fiber-forming polymer of the ultrafine polyester yarn is preferably a low-viscosity polyester compound, more preferably low-viscosity polyethylene terephthalate.

[0020] The elastic yarn can be a parallel elastic yarn, such as a PET / PBT parallel elastic yarn, a PET / PTT parallel elastic yarn, or a PET / PET parallel elastic yarn; or it can be a single elastic yarn, such as a PBT yarn, a PTT yarn, or a PET yarn. The elasticity of the elastic yarn is not particularly limited in the present invention, as long as the overall processed yarn has an elongation elastic modulus within a range of 70% to 95% after 10 stretch recovery cycles.

[0021] The polyester hairy blended yarn of the present invention can be prepared by the following method: first, pre-stretching ultrafine polyester POY filaments to produce thick and thin sections on the ultrafine polyester filaments; then, compounding the ultrafine polyester filaments with elastic POY filaments and performing high-temperature false twisting together; controlling the false twisting temperature within the range of 150-240° C. and the appropriate draft ratio and processing tension so that a portion of the thick sections on the ultrafine polyester filaments are cut off during the high-temperature false twisting process to form hairiness; applying a certain amount of air entanglement to the blended yarn after the false twisting process to compound the ultrafine polyester yarn and the elastic yarn; and finally, winding the blended yarn.

[0022] Alternatively, the ultrafine polyester POY filaments and the elastic POY filaments may be pre-stretched together to produce thick and thin sections on the ultrafine polyester filaments, and then subjected to a high-temperature false twisting process together. The false twisting temperature is controlled within the range of 150 to 240° C., and the draft ratio and processing tension are appropriately controlled so that a portion of the thick sections on the ultrafine polyester filaments are cut off during the high-temperature false twisting process to form hairiness. A certain amount of air entanglement is applied to the mixed fiber yarn after the false twisting process to composite the ultrafine polyester yarn and the elastic yarn together, and finally the mixed fiber processed yarn is obtained by warping.

[0023] The polyester hairiness blended yarn of the present invention can be made into textiles alone or together with other yarns, and the anti-pilling effect of the textile is above level 3. The present invention does not particularly limit the form of the textile, and it can be a woven fabric, a knitted fabric, a braided fabric, etc.

[0024] The testing method involved in the present invention is as follows:

[0025] (1) Elongation elasticity of the processed yarn after 10 stretch recovery

[0026] Refer to JIS L 1013:2010 "Test methods for chemical filament yarns" in "8.9 Elongation elastic modulus" test method A for testing. Select one test sample, either yarn or decomposed filaments from a fabric sample, and use a tensile testing machine (manufactured by INTECO, RTC-1225A model). Apply an initial load (0.882 (cN / tex) × fineness (tex)) with a clamping distance of 20 cm and a stretching speed of 100 mm / min to stretch the sample by 5%. Afterwards, remove the load at the same speed, hold for 2 minutes, and stretch again at the same speed. Repeat this process 10 times, and measure the residual elongation. Perform the above test five times and take the average value.

[0027] Elongation modulus E = (L-L1) / L×100,

[0028] Wherein, E: elongation elasticity (%),

[0029] L: elongation at 5% elongation (mm),

[0030] L1: Residual elongation (mm).

[0031] (2) Number of hairs

[0032] The test was conducted in accordance with the national industry standard FZ / T 01086 “Determination of Hairiness of Textile Yarns - Projection Counting Method”.

[0033] (3) CF value (interconnection degree)

[0034] The CF value of the fiber was measured using an automatic crosslinking degree tester (ENTANGLEMENT TESTER-2040 manufactured by Rothschild) according to the method described in JIS L 1013 (2010).

[0035] (4) Anti-pilling effect

[0036] The anti-pilling effect of the fabric in the present invention is tested with reference to the standard JIS L 1076:2012 A method.

[0037] (5) Evaluation of cotton-like effect

[0038] a. Fabric production

[0039] The polyester fiber blended yarn of the present invention is used as warp and weft yarns to make plain woven fabric, wherein the density of the warp and weft yarns is 102 yarns / inc×68 yarns / inc. The fabric is then scoured (95°C, V 布 =40m / min)→Intermediate setting (170℃, V 布=50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to make fabric.

[0040] b. Sensory evaluation

[0041] Ten people were randomly selected to conduct sensory evaluation (excellent cotton feeling, cotton feeling, no cotton feeling). If more than 7 people gave excellent cotton feeling, it was rated as ◯, if more than 5 people gave excellent cotton feeling, it was rated as △, and if less than 4 people gave excellent cotton feeling, it was rated as ×.

[0042] The present invention will be described in detail below with reference to the examples, but the examples are not intended to limit the present invention.

[0043] Example 1

[0044] Ultrafine polyester POY filaments with a single filament fineness of 1.00 dtex and PBT / PET parallel elastic POY filaments with a single filament fineness of 3.00 dtex were blended in a 50:50 weight ratio. The blended yarns were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.24. The yarns were then air-entangled at 0.2 MPa while maintaining an overfeed ratio of 3.0% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 84T-144F + 84T-48F) was wound. The ultrafine polyester yarn in the blended yarn had a single filament fineness of 0.58 dtex. Specific properties are shown in Table 1.

[0045] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布 =40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 1.

[0046] Example 2

[0047] Ultrafine polyester POY filaments with a single-filament fineness of 0.53 dtex and PBT / PET parallel elastic POY filaments with a single-filament fineness of 2.10 dtex were blended in a 50:50 weight ratio. The fibers were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.24. The fibers were then subjected to 0.2 MPa air entanglement and compounding, maintaining an overfeed ratio of 3.0% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 30T-96F + 30T-24F) was obtained. The ultrafine polyester yarn in the blended yarn had a single-filament fineness of 0.31 dtex. Specific properties are shown in Table 1.

[0048] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布 =40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 1.

[0049] Example 3

[0050] Ultrafine polyester POY filaments with a single-filament fineness of 0.44 dtex and PBT / PET parallel elastic POY filaments with a single-filament fineness of 1.76 dtex were blended in a 50:50 weight ratio. The fibers were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.24. The fibers were then subjected to 0.2 MPa air entanglement and compounding, maintaining an overfeed ratio of 3.0% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 25T-96F + 25T-24F) was obtained. The ultrafine polyester yarn in the blended yarn had a single-filament fineness of 0.26 dtex. Specific properties are shown in Table 1.

[0051] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布 =40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布=50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 1.

[0052] Example 4

[0053] Ultrafine polyester POY filaments with a single filament fineness of 1.70 dtex were blended with PBT / PET parallel elastic POY filaments with a single filament fineness of 3.40 dtex in a 50:50 weight ratio. The fibers were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.24. The fibers were then subjected to 0.2 MPa air entanglement and compounding, maintaining an overfeed ratio of 3.0% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 96T-96F + 96T-48F) was obtained. The ultrafine polyester yarn in the blended yarn had a single filament fineness of 1.00 dtex. Specific properties are shown in Table 1.

[0054] The polyester hairy blended yarn prepared above was used as warp and weft processing yarn to make plain grey fabric, wherein the density of warp and weft yarn was 102 yarns / inc ╳ 68 yarns / inc. Then the grey fabric was refined (95℃, V 布 =40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 1.

[0055] Example 5

[0056] Ultrafine polyester POY filaments with a single-filament fineness of 2.15 dtex were blended with PBT / PET parallel elastic POY filaments with a single-filament fineness of 4.30 dtex in a 50:50 weight ratio. The fibers were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.24. The fibers were then subjected to 0.2 MPa air entanglement and compounding, maintaining an overfeed ratio of 3.0% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 120T-96F + 120T-48F) was obtained. The ultrafine polyester yarn in the blended yarn had a single-filament fineness of 1.25 dtex. Specific properties are shown in Table 1.

[0057] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布=40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 1.

[0058] Example 6

[0059] Ultrafine polyester POY filaments with a single filament fineness of 1.00 dtex and PBT / PET parallel elastic POY filaments with a single filament fineness of 3.00 dtex were blended in a 50:50 weight ratio. The fibers were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.31. The fibers were then subjected to 0.2 MPa air entanglement and compounding, maintaining an overfeed ratio of 3.0% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 84T-144F + 84T-48F) was obtained. The ultrafine polyester yarn in the blended yarn had a single filament fineness of 0.58 dtex. Specific properties are shown in Table 1.

[0060] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布 =40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to produce a fabric. The fabric was then tested for its anti-pilling properties and cotton-like feel. Specific properties are shown in Table 1.

[0061] Example 7

[0062] Ultrafine polyester POY filaments with a single filament fineness of 1.00 dtex and PBT / PET parallel elastic POY filaments with a single filament fineness of 3.00 dtex were blended in a 50:50 weight ratio. The fibers were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.24. The fibers were then subjected to 0.2 MPa air entanglement and compounding, maintaining an overfeed ratio of 2.0% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 84T-144F + 84T-48F) was obtained. The ultrafine polyester yarn in the blended yarn had a single filament fineness of 0.58 dtex. Specific properties are shown in Table 1.

[0063] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布 =40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 1.

[0064] Example 8

[0065] Ultrafine polyester POY filaments with a single filament fineness of 1.00 dtex and PBT / PET parallel elastic POY filaments with a single filament fineness of 3.00 dtex were blended in a 50:50 weight ratio. The fibers were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.24. The fibers were then subjected to 0.2 MPa air entanglement and compounding, maintaining an overfeed ratio of 2.5% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 84T-144F + 84T-48F) was obtained. The ultrafine polyester yarn in the blended yarn had a single filament fineness of 0.58 dtex. Specific properties are shown in Table 1.

[0066] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布 =40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 1.

[0067] Example 9

[0068] Ultrafine polyester POY filaments with a single filament fineness of 1.00 dtex and PBT / PET parallel elastic POY filaments with a single filament fineness of 3.00 dtex were blended in a 50:50 weight ratio. The fibers were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.24. The fibers were then subjected to 0.2 MPa air entanglement and compounding, maintaining an overfeed ratio of 3.5% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 84T-144F + 84T-48F) was obtained. The ultrafine polyester yarn in the blended yarn had a single filament fineness of 0.58 dtex. Specific properties are shown in Table 1.

[0069] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布 =40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 1.

[0070] Example 10

[0071] Ultrafine polyester POY filaments with a single filament fineness of 1.00 dtex and PBT / PET parallel elastic POY filaments with a single filament fineness of 3.00 dtex were blended in a 50:50 weight ratio. The fibers were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.24. The fibers were then subjected to 0.2 MPa air entanglement and compounding, maintaining an overfeed ratio of 4.0% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 84T-144F + 84T-48F) was obtained. The ultrafine polyester yarn in the blended yarn had a single filament fineness of 0.58 dtex. Specific properties are shown in Table 1.

[0072] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布 =40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布=50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 1.

[0073] Example 11

[0074] Ultrafine polyester POY filaments with a single filament fineness of 1.00 dtex and PTT elastic POY filaments with a single filament fineness of 3.00 dtex were blended in a 50:50 weight ratio. The fibers were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.24. The fibers were then subjected to 0.2 MPa air entanglement and compounding, maintaining an overfeed ratio of 3.0% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 84T-144F + 84T-48F) was obtained. The ultrafine polyester yarn in the blended yarn had a single filament fineness of 0.58 dtex. Specific properties are shown in Table 1.

[0075] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布 =40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 2.

[0076] Example 12

[0077] Ultrafine polyester POY filaments with a single filament fineness of 1.00 dtex and PBT elastic POY filaments with a single filament fineness of 3.00 dtex were blended in a 50:50 weight ratio. The fibers were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.24. The fibers were then subjected to 0.2 MPa air entanglement and compounding, maintaining an overfeed ratio of 3.0% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 84T-144F + 84T-48F) was obtained. The ultrafine polyester yarn in the blended yarn had a single filament fineness of 0.58 dtex. Specific properties are shown in Table 2.

[0078] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布=40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 2.

[0079] Example 13

[0080] Ultrafine polyester POY filaments with a single filament fineness of 1.00 dtex and PBT / PET parallel elastic POY filaments with a single filament fineness of 6.00 dtex were blended in a 50:50 weight ratio. The fibers were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.24. The fibers were then subjected to 0.20 MPa air entanglement and compounding, maintaining an overfeed ratio of 3.0% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 84T-144F + 84T-24F) was obtained. The ultrafine polyester yarn in the blended yarn had a single filament fineness of 0.58 dtex. Specific properties are shown in Table 2.

[0081] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布 =40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 2.

[0082] Comparative Example 1

[0083] Ultrafine polyester POY filaments with a single yarn fineness of 1.00 dtex were blended with PET POY filaments with a single yarn fineness of 1.50 dtex in a 50:50 weight ratio. The yarns were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box, with an external draft ratio of 1.38 and an internal draft ratio of 1.24. The yarns were then subjected to 0.20 MPa air entanglement and compounding, maintaining an overfeed ratio of 3.0% at the interlacing point, to produce a polyester hairiness blended yarn (84T-144F + 84T-96F). The ultrafine polyester yarn in the blended yarn had a single yarn fineness of 0.58 dtex. Specific properties are shown in Table 2.

[0084] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布 =40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 2.

[0085] Since there is no elastic yarn in the processed yarn, the elongation elasticity of the processed yarn after 10 stretching and recovery is low. The hairiness on the processed yarn has poor anti-fatigue effect during friction and is easy to tangle into balls, so its anti-pilling performance is poor.

[0086] Comparative Example 2

[0087] Ultrafine polyester POY filaments with a single filament fineness of 1.00 dtex were blended with PBT / PET parallel elastic POY filaments with a single filament fineness of 12.00 dtex in a 50:50 weight ratio. The fibers were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.24. The fibers were then subjected to 0.20 MPa air entanglement and compounding, maintaining an overfeed ratio of 3.0% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 84T-144F + 84T-12F) was obtained. The ultrafine polyester yarn in the blended yarn had a single filament fineness of 0.58 dtex. Specific properties are shown in Table 2.

[0088] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布 =40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 2.

[0089] Since the elasticity of the elastic yarn in the processed yarn is too high, the elongation elasticity of the processed yarn after stretching and recovering 10 times is too high, the overall recovery of the yarn is too large, the fabric feels hard, and loses the cotton-like effect.

[0090] Comparative Example 3

[0091] Ultrafine polyester POY filaments with a single filament fineness of 1.00 dtex and PBT / PET parallel elastic POY filaments with a single filament fineness of 3.00 dtex were blended in a 50:50 weight ratio. The fibers were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.18. The fibers were then subjected to 0.2 MPa air entanglement and compounding, maintaining an overfeed ratio of 3.0% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 84T-144F + 84T-48F) was obtained. The ultrafine polyester yarn in the blended yarn had a single filament fineness of 0.58 dtex. Specific properties are shown in Table 2.

[0092] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布 =40m / min)→Intermediate setting (170℃, V 布 =50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 2.

[0093] Since the number of hairiness longer than 1 mm on the blended yarn is relatively small, the fabric made from it loses its cotton-like feel.

[0094] Comparative Example 4

[0095] Ultrafine polyester POY filaments with a single filament fineness of 1.00 dtex and PBT / PET parallel elastic POY filaments with a single filament fineness of 3.00 dtex were blended in a 50:50 weight ratio. The fibers were then subjected to appropriate external drafting (80°C) and then to false twisting in a 220°C hot box with an external draft ratio of 1.38 and an internal draft ratio of 1.34. The fibers were then subjected to 0.2 MPa air entanglement and compounding, maintaining an overfeed ratio of 3.0% at the interlacing point. The resulting polyester hairiness blended yarn (ultrafine polyester yarn + elastic yarn = 84T-144F + 84T-48F) was obtained. The ultrafine polyester yarn in the blended yarn had a single filament fineness of 0.58 dtex. Specific properties are shown in Table 2.

[0096] The polyester hairy blended yarn prepared above was used as warp and weft yarns to make plain grey fabric, wherein the density of the warp and weft yarns was 102 yarns / inc ╳ 68 yarns / inc. The grey fabric was then scoured (95°C, V 布 =40m / min)→Intermediate setting (170℃, V 布=50m / min)→dyeing (130℃╳60min)→post-setting (140℃, V 布 =50m / min) to make a fabric. Finally, the anti-pilling performance and cotton-like feel of the fabric were tested. The specific performance is shown in Table 2.

[0097] Since the number of hairiness with a length of more than 1 mm on the mixed fiber processed yarn is relatively large, even if the elongation elasticity of the processed yarn reaches 81.9% after being stretched and recovered 10 times, excessive hairiness falls off and tangles into balls during the friction process, resulting in poor anti-pilling effect of the fabric.

[0098]

[0099]

Claims

1. A polyester hairy blended yarn, characterized in that: The processed yarn contains elastic yarn and ultra-fine polyester yarn. The number of hairiness with a length of more than 1 mm on the processed yarn is 100-800 / 10m. The elongation elasticity of the processed yarn after stretching and recovering 10 times is 70-95%.

2. The polyester hairiness blended yarn according to claim 1, characterized in that: The CF value of the processed yarn is 350-500.

3. The polyester hairiness blended yarn according to claim 1, characterized in that: The single filament fineness of the ultra-fine polyester yarn is 0.30-1.0 dtex.

4. A textile mainly composed of the polyester hairiness blended yarn according to claim 1.

5. The textile according to claim 4, characterized in that The anti-pilling effect of the textile is above level 3.