Novel polyester fiber and sheep wool blended fabric and preparation method thereof

Abstract

The invention relates to a novel polyester fiber and sheep wool blended fabric and a preparation method thereof. The fabric comprises the following components: 50-72% of polyester fibers and 20-30% of sheep wool, preferably 70.8% of polyester fibers and 29.2% of sheep wool. The preparation method comprises the steps of raw material selection and pretreatment, mixing and carding, spinning, weaving and after-finishing. In raw material pretreatment, polyester chips in a specific viscosity range are selected for pre-crystallization and drying, and high-quality sheep wool is cleaned, carded and subjected to impurity removal. In the mixing and carding process, the raw materials are mixed by using an accurate metering device, and an antistatic agent is added, so that the parallelism and orientation degree of the fibers are ensured. Ring spinning or rotor spinning is adopted for spinning, and spinning parameters are strictly controlled. And weaving adopts a plain weave, twill weave or jacquard weave structure. The after-finishing comprises the steps of shaping, drying, shearing and sanding, and dyeing or printing treatment can be carried out. The prepared fabric combines the strength and the wear resistance of the polyester fibers and the heat preservation property, the moisture absorption and sweat releasing property and the softness of the sheep wool, and the multifunctional fabric requirement is met.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing fabrics, and particularly to a novel blended fabric of polyester fiber and wool. Background Art

[0002] In the textile field, blended fabrics are highly favored because they can combine the characteristics of different fibers. Polyester fiber, as a synthetic fiber, is widely used due to its high strength, wear resistance, easy washing, and quick drying properties, but it has deficiencies in heat preservation, moisture absorption and sweat discharge, and softness. On the contrary, wool, as a natural fiber, has excellent heat preservation performance, good moisture absorption, and a natural soft touch. However, its strength is relatively low, and it is prone to shrinkage and deformation, which limits its use in some applications.

[0003] To combine the advantages of polyester fiber and wool, traditional blending techniques have been widely used. However, these techniques often face challenges: it is difficult to ensure the uniformity of raw material mixing, resulting in inconsistent fabric properties; the electrostatic problem is prominent during the spinning and weaving processes, affecting the arrangement of fibers and the structural stability of the fabric; the post-finishing process is insufficient, making it difficult to fully display the best performance of the fabric. Therefore, there is an urgent need in the market for a novel blended fabric of polyester fiber and wool that can fully integrate the advantages of the two fibers while overcoming the deficiencies in the existing technology. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a novel blended fabric of polyester fiber and wool.

[0005] The technical problem to be solved by the present invention is achieved by the following technical solutions:

[0006] A novel blended fabric of polyester fiber and wool, the components of which include 50 - 72% of polyester fiber and 20 - 30% of wool, and the preferred components are 70.8% of polyester fiber and 29.2% of wool. The preparation method of this fabric includes the following steps:

[0007] (1) Raw material selection and pretreatment

[0008] Polyester fiber: Select polyester chips with an intrinsic viscosity between 0.680 and 0.700, pre-crystallize at 155°C - 160°C, and then dry at 175°C - 180°C until the moisture content is below 12 ppm to ensure the purity and stability of the raw materials.

[0009] Wool: Select high-quality wool with a fineness of 18 - 20 microns, and after cleaning, carding, and impurity removal treatments, ensure the purity of the wool and the consistency of fiber length.

[0010] (2) Mixing and carding

[0011] The pretreated polyester fiber and sheep wool are fed into a mixing device according to a set ratio. The mixing device has a precise metering device and is controlled by a computer to ensure the accuracy of the raw material ratio.

[0012] During the mixing process, an appropriate amount of antistatic agent is added to avoid static adsorption and agglomeration between fibers. After being evenly mixed, the fibers are sent to the carding machine for carding to improve the parallelism and orientation of the fibers, laying the foundation for subsequent spinning of high-count yarns.

[0013] (3) Spinning: The combed fibers are fed into a ring spinning machine or an air spinning machine for spinning. During the spinning process, parameters such as spinning tension, twist and winding speed are strictly controlled to ensure the quality and stability of the yarn.

[0014] (4) Weaving: The spun yarn is fed into a loom for weaving. During the weaving process, plain, twill or jacquard weave structures can be used to increase the layering and aesthetics of the fabric.

[0015] (5) Finishing: Finishing the woven fabric, including shaping, drying, shearing, sanding and other processes. Shaping can improve the dimensional stability and flatness of the fabric; drying can remove moisture and residues in the fabric; shearing and sanding can improve the softness and comfort of the fabric. In the finishing process, the fabric can also be dyed or printed as needed to meet the needs of different colors and patterns. Beneficial effects of the present invention:

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The fabric successfully combines the strength and abrasion resistance of polyester with the warmth, moisture wicking and softness of sheep wool, meeting consumer demand for a versatile fabric.

[0018] The use of a precisely metered mixing device ensures that polyester fiber and sheep wool are evenly distributed in the fabric, making the fabric performance stable and avoiding performance fluctuations caused by uneven mixing of raw materials.

[0019] Adding antistatic agents during the mixing process effectively reduces static adsorption between fibers, improves the parallelism and orientation of the fibers, and makes the fabric structure tighter and smoother.

[0020] Through finishing processes such as shaping, drying, shearing and sanding, the appearance and feel of the fabric are further improved, making it more in line with market demand and consumer aesthetics.

[0021] The new polyester fiber and wool blended fabric made by this patent not only fully integrates the advantages of the two fibers, but also solves the problems existing in traditional blended fabrics through innovative preparation processes, bringing a creative revolution to the textile industry and meeting the needs of consumers for high-quality and multi-functional fabrics. Detailed implementation methods

[0022] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further elaborated below in combination with specific embodiments and reference examples.

[0023] Example 1

[0024] A new polyester fiber and wool blended fabric, the components of which include: 60% polyester fiber and 40% wool.

[0025] (1) Raw material selection and pretreatment

[0026] Polyester fiber: Polyester chips with an intrinsic viscosity between 0.6 and 0.8 are selected, pre-crystallized at 155 °C, and then dried at 175 °C until the moisture content is 10 ppm to ensure the purity and stability of the raw materials.

[0027] Wool: High-quality wool with a fineness of 18 microns is selected, and after cleaning, carding and impurity removal treatments, the purity of the wool and the consistency of the fiber length are ensured.

[0028] (2) Mixing and carding

[0029] The pretreated polyester fiber and wool are fed into a mixing device according to the set ratio. The mixing device has a precise metering device, which is controlled by a computer to ensure the accuracy of the raw material ratio.

[0030] During the mixing process, an appropriate amount of antistatic agent is added to avoid electrostatic adsorption and agglomeration between fibers. After mixing evenly, the fibers are fed into a carding machine for carding to improve the parallelism and orientation of the fibers, laying a foundation for subsequent spinning and weaving.

[0031] (3) Spinning: The carded fibers are fed into a ring spinning frame for spinning. During the spinning process, the spinning tension is 30 cN, the twist is 400 turns / meter, and the winding speed is 500 meters / minute.

[0032] (4) Weaving: The spun yarn is fed into a loom for weaving. During the weaving process, a plain weave structure is adopted, and the warp and weft densities are 300 ends / 10 cm × 300 picks / 10 cm.

[0033] (5) Post-finishing: The woven fabric is subjected to post-finishing treatments, including setting, drying, shearing, and sanding processes. The setting temperature is 180 °C, the drying time is 30 minutes, the shearing depth is 0.5 mm, and the sanding pressure is 200 N.

[0034] Example 2

[0035] A new type of blended fabric of polyester fiber and wool, its components include: 55% polyester fiber and 45% wool.

[0036] (1) Raw material selection and pretreatment

[0037] Polyester fiber: Select polyester chips with an intrinsic viscosity between 0.6 and 0.9. Pre-crystallize at 158 °C, and then dry at 178 °C until the moisture content is 11 ppm to ensure the purity and stability of the raw materials.

[0038] Wool: Select high-quality wool with a fineness of 19 microns. After washing, carding and impurity removal treatments, ensure the purity of the wool and the consistency of fiber length.

[0039] (2) Mixing and carding

[0040] Feed the pretreated polyester fiber and wool into the mixing device according to the set ratio. The mixing device has an accurate metering device, which is controlled by a computer to ensure the accuracy of the raw material ratio.

[0041] During the mixing process, add an appropriate amount of antistatic agent to avoid electrostatic adsorption and agglomeration between fibers. After mixing evenly, feed the fibers into the carding machine for carding to improve the parallelism and orientation of the fibers, laying a foundation for subsequent spinning and weaving.

[0042] (3) Spinning: Feed the carded fibers into a ring spinning frame for spinning. During the spinning process, the spinning tension is 25 cN, the twist is 350 turns / meter, and the winding speed is 450 meters / minute.

[0043] (4) Weaving: Feed the spun yarn into a loom for weaving. During the weaving process, a jacquard weave structure is adopted, and the warp and weft densities are 280 ends / 10 cm × 280 picks / 10 cm.

[0044] (5) Post-finishing: Carry out post-finishing treatment on the woven fabric, including setting, drying, shearing and sanding processes. The setting temperature is 170 °C, the drying time is 25 minutes, the shearing depth is 0.3 mm, and the sanding pressure is 150 N.

[0045] Example 3

[0046] A new type of blended fabric of polyester fiber and wool, its components include: 70.8% polyester fiber and 29.2% wool.

[0047] (1) Raw material selection and pretreatment

[0048] Polyester fiber: Polyester chips with an intrinsic viscosity between 0.700 are selected, pre-crystallized at 160 °C, and then dried at 180 °C to a moisture content of 12 ppm to ensure the purity and stability of the raw materials.

[0049] Merino wool: High-quality merino wool with a fineness of 20 microns is selected, and after being washed, carded, and decontaminated, the purity of the wool and the consistency of the fiber length are ensured.

[0050] (2) Mixing and carding

[0051] The pretreated polyester fiber and merino wool are fed into a mixing device according to a set ratio. The mixing device has an accurate metering device, which is controlled by a computer to ensure the accuracy of the raw material ratio.

[0052] During the mixing process, an appropriate amount of antistatic agent is added to avoid static adsorption and agglomeration between the fibers. After mixing evenly, the fibers are fed into a carding machine for carding to improve the parallelism and orientation of the fibers, laying a foundation for subsequent spinning and weaving.

[0053] (3) Spinning: The carded fibers are fed into an air-jet spinning machine for spinning. During the spinning process, the spinning tension is 35 cN, the twist is 450 turns / meter, and the winding speed is 600 meters / minute.

[0054] (4) Weaving: The spun yarn is fed into a loom for weaving. During the weaving process, a twill weave structure is adopted, and the warp and weft densities are 320 ends / 10 cm × 320 picks / 10 cm.

[0055] (5) Post-treatment: The woven fabric is subjected to post-treatment, including setting, drying, shearing, and sanding processes. The setting temperature is 190 °C, the drying time is 40 minutes, the shearing depth is 0.8 mm, and the sanding pressure is 250 N. The performance of the fabrics made from the above three examples is tested, and the final performance table is shown in Table 1:

[0056] Table 1 Performance test results

[0057]

[0058] Instructions:

[0059] 1. Thermal insulation: Measured in Clo value, the larger the value, the better the thermal insulation. The thermal insulation of Examples 1, 2, and 3 is between 2.7 - 2.9, showing good thermal insulation performance.

[0060] 2. Moisture absorption and sweat wicking: Measured in moisture transmission rate (g / m 2 ·h), the larger the value, the better the moisture absorption and sweat wicking. Example 3 has the best moisture absorption and sweat wicking performance, reaching 370 g / m 2·h, Example 1 is the second, and Example 2 is slightly inferior.

[0061] 3. Softness: Evaluated by feel scoring, with 1 point representing the hardest and 5 points representing the softest. Example 3 has the best softness, scoring 4.8 points. Example 1 is the second, scoring 4.5 points, and Example 2 scores 4 points, also showing good softness.

[0062] 4. Antibacterial and odor-proof property: Measured in terms of the antibacterial rate (%), and the larger the value, the better the antibacterial and odor-proof property. Example 2 has the best antibacterial and odor-proof property, with an antibacterial rate reaching 92%. Example 1 is the second, and Example 3 is slightly inferior, but the antibacterial rate also reaches 88%. All show good antibacterial and odor-proof performance.

[0063] 5. Elastic recovery rate: Expressed as a percentage (%), and the larger the value, the better the elastic recovery property. Example 3 has the highest elastic recovery rate, reaching 96%. Example 1 is the second, and Example 2 also shows a relatively high elastic recovery rate of 93%.

[0064] In summary, the three examples all show good performance in terms of heat preservation, moisture absorption and sweat discharge, softness, antibacterial and odor-proof property, and elastic recovery property, and each has its own characteristics. These performance test results provide strong data support for the further development and application of the fabric.

[0065] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of polyester fiber and sheep wool blended fabric, characterized in that: Its composition includes 50-72% polyester fiber and 20-30% sheep wool.

2. The novel polyester fiber and sheep wool blended fabric according to claim 1 is characterized in that: The preferred composition of the polyester fiber and sheep wool is 70.8% polyester fiber and 29.2% sheep wool.

3. The method for preparing the novel polyester fiber and sheep wool blended fabric according to claim 1, characterized in that: It includes raw material selection and pretreatment, mixing and carding, spinning, weaving and finishing steps.

4. The preparation method according to claim 3, characterized in that: The raw material selection and pretreatment steps include selecting polyester chips with a characteristic viscosity between 0.680 and 0.700 for pre-crystallization and drying, and selecting high-quality sheep wool with a fineness of 18-20 microns for washing, combing and impurity removal.

5. The preparation method according to claim 3, characterized in that: In the mixing and combing step, the pretreated polyester fiber and sheep wool are fed into a mixing device with a precise metering device according to a set ratio for mixing, and a proper amount of antistatic agent is added during the mixing process. After mixing evenly, combing is performed.

6. The preparation method according to claim 3, characterized in that: In the spinning step, the combed fibers are fed into a ring spinning machine or an air spinning machine for spinning, and parameters such as spinning tension, twist and winding speed are strictly controlled.

7. The preparation method according to claim 3, characterized in that: In the weaving step, the spun yarn is fed into a loom for weaving, using a plain weave, twill weave or jacquard weave structure.

8. The preparation method according to claim 3, characterized in that: The post-finishing step includes shaping, drying, shearing and sanding the woven fabric to improve the dimensional stability, flatness and softness of the fabric.

9. The preparation method according to claim 8, characterized in that: In the post-finishing step, the fabric can also be dyed or printed as needed.

10. The novel polyester fiber and sheep wool blended fabric and the preparation method thereof according to any one of claims 1 to 9, characterized in that: The resulting fabric successfully combines the strength and abrasion resistance of polyester with the warmth retention, moisture wicking and softness of sheep wool.

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