Manufacturing method of wool and ultra-high molecular weight polyethylene fiber composite fabric

Abstract

The invention discloses a method for manufacturing a wool and ultra-high molecular weight polyethylene fiber composite fabric, which belongs to the field of spinning methods, is used for manufacturing the wool and ultra-high molecular weight polyethylene fiber composite fabric, and comprises the following steps of: plying and spinning wool or wool blended single yarns and ultra-high molecular weight polyethylene fibers to manufacture the composite fabric; the warp yarns and the weft yarns in the yarn arrangement adopt common yarns and ultra-high yarns which are arranged at intervals; a non-singeing secondary shearing process, a low-temperature repeated drying method and a low-temperature short-time open decating method are adopted in the dyeing and finishing process; steam ironing is adopted in garment processing. Compared with an existing method, the method has the advantages that the strength and wear resistance of the fabric are improved, meanwhile, the comfort of wool is kept, the influence of high temperature on the fabric is reduced, abnormal shrinkage is avoided, and the problems of high-temperature thermal strength attenuation and difficulty in dyeing of the ultra-high molecular weight polyethylene fiber are solved.

Description

[0001] Methodology Area

[0002] The invention discloses a method for preparing a composite fabric of wool and ultra-high molecular weight polyethylene fibers, belonging to the field of textile methods.

[0003] Background Methods

[0004] Wool fiber is widely used in textile production due to its excellent warmth retention and comfort, but its low strength and poor wear resistance limit its scope of application. Ultra-high molecular weight polyethylene fiber (UHMWPE) has extremely high strength and wear resistance, but it has problems with high-temperature thermal strength thermal attenuation and difficulty in dyeing. In the existing methods, the steaming, drying, and decatizing processes in the wool fabric production process require high-temperature finishing, which greatly damages the strength of the ultra-high fibers in the fabric. At the same time, ultra-high molecular weight polyethylene fibers are difficult to dye and are only white, which affects the appearance of the fabric, making it difficult to produce textiles that have the advantages of both. Summary of the invention

[0005] The purpose of the present invention is to provide a method for preparing a wool and ultra-high molecular weight polyethylene fiber composite fabric to solve the problems of low strength and poor wear resistance of wool fibers and high temperature thermal strength thermal attenuation and difficulty in dyeing of ultra-high molecular weight polyethylene fibers in the existing methods.

[0006] A method for making a composite fabric of wool and ultra-high molecular weight polyethylene fiber comprises ply spinning wool or wool blended single yarn with ultra-high molecular weight polyethylene fiber to make the composite fabric.

[0007] The composite fabric includes raw materials of wool or wool blended single yarn and ultra-high molecular weight polyethylene fiber, which are blended in a certain proportion.

[0008] The wool or wool blended single yarn is plied with ultra-high molecular weight polyethylene fiber, and the twist of the plied yarn is between 130 and 160.

[0009] In the yarn arrangement, the warp yarns and weft yarns are arranged alternately with ordinary yarns and super-high yarns, with the minimum interval being that the super-high yarn is interlaced once for every ordinary yarn, and the maximum interval being that the super-high yarn is interlaced once for every 50 ordinary yarns.

[0010] The dyeing and finishing process adopts the non-singing secondary shearing process, low-temperature repeated drying method and low-temperature short-time open decatizing method;

[0011] Low temperature repeated drying method: The drying temperature is not higher than 70 degrees Celsius, the drying time is not less than 10 minutes, and the number of repetitions is not less than 2 times;

[0012] In the low-temperature short-time open decatizing method, the temperature is not higher than 90 degrees Celsius and the time is not less than 15 minutes.

[0013] The temperature during garment processing does not exceed 125 degrees Celsius.

[0014] Compared with the existing methods, the present invention has the following beneficial effects: the strength and wear resistance of the fabric are improved, while the comfort of wool is maintained, the influence of high temperature on the fabric is reduced, and abnormal shrinkage is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the first group of A yarn fabric surface organization diagram;

[0016] Figure 2 This is the surface organization diagram of the second group of B yarn fabrics;

[0017] Figure 3 yes Figure 1 and Figure 2 Cross-hatch organizational chart;

[0018] Figure 4 This is the first set of weft A yarn fabric surface organization diagram;

[0019] Figure 5 This is the surface organization diagram of the second group of weft B yarn fabric;

[0020] Figure 6 yes Figure 4 and Figure 5 A cross-sectional organizational chart. DETAILED DESCRIPTION

[0021] In order to make the purpose, method scheme and advantages of the present invention clearer, the method scheme in the present invention is described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary method personnel in the field without creative work are within the scope of protection of the present invention.

[0022] A method for making a composite fabric of wool and ultra-high molecular weight polyethylene fiber comprises ply spinning wool or wool blended single yarn with ultra-high molecular weight polyethylene fiber to make the composite fabric.

[0023] The composite fabric includes raw materials of wool or wool blended single yarn and ultra-high molecular weight polyethylene fiber, which are blended in a certain proportion.

[0024] The wool or wool blended single yarn is plied with ultra-high molecular weight polyethylene fiber, and the twist of the plied yarn is between 130 and 160.

[0025] In the yarn arrangement, the warp yarns and weft yarns are arranged alternately with ordinary yarns and super-high yarns, with the minimum interval being that the super-high yarn is interlaced once for every ordinary yarn, and the maximum interval being that the super-high yarn is interlaced once for every 50 ordinary yarns.

[0026] The dyeing and finishing process adopts the non-singing secondary shearing process, low-temperature repeated drying method and low-temperature short-time open decatizing method;

[0027] Low temperature repeated drying method: The drying temperature is not higher than 70 degrees Celsius, the drying time is not less than 10 minutes, and the number of repetitions is not less than 2 times;

[0028] In the low-temperature short-time open decatizing method, the temperature is not higher than 90 degrees Celsius and the time is not less than 15 minutes.

[0029] The temperature during garment processing does not exceed 125 degrees Celsius.

[0030] The present invention develops a new type of fabric combining ultra-high molecular weight polyethylene filaments and wool. On the one hand, it utilizes the high wear resistance, high strength, low friction coefficient, good chemical stability and corrosion resistance of the ultra-high molecular weight polyethylene filaments, and on the other hand, it combines the good warmth retention, moisture absorption, drape and elasticity of wool fibers.

[0031] In the present invention, the twist factor is a coefficient for calculating the twist:

[0032]

[0033] T is twist, which is the number of twists per meter, K is twist coefficient, and N is the metric count of the yarn, which usually refers to the length in meters of 1g of yarn. The yarn of the present invention is formed by plying 12.5tex single yarn and 30D / 1 ultra-high molecular weight polyethylene filament, and the yarn count after plying is 8.3*2tex, and the twist coefficient of the plying ranges from 100 to 180. The twist coefficient process parameters are shown in Table 1, and the influence of twist change on yarn performance is shown in Table 2.

[0034] Table 1 Twist coefficient process parameters

[0035] Yarn number Strand Line Density (tex) Twist Factor Twist(T / m) N1 8.3*2 100 775 N2 8.3*2 130 1005 N3 8.3*2 160 1240 N4 8.3*2 180 1390

[0036] Table 2 Effect of twist change on yarn properties

[0037] Test No. Breaking strength(cN) Elongation(%) Hairiness index CV of bar dryness (%) N1 506 22.02 2.41 15.89 N2 520 24.45 2.31 15.4 N3 580 24.82 2.31 15.34 N4 605 25.81 2.24 15.75

[0038] Analyzing the above experimental results, the breaking strength increases with the increase of twist coefficient, because twisting increases the friction between fibers, thereby increasing the breaking strength, and the elongation also increases accordingly, the hairiness index does not change significantly, and the CV value of the yarn decreases first and then increases with the increase of the twist coefficient. When the twist coefficient increases, the fibers are tightly held and the yarn becomes better. If the twist coefficient continues to increase, the compressibility of the gaps between fibers decreases, the inclination angle of the fibers in the yarn arrangement increases, and the force at the weak section of the yarn becomes thinner, resulting in a larger CV% of the yarn, which affects the yarn evenness. In summary, the twist coefficient of the yarn is reasonable within the range of 130-160.

[0039] Ultra-high molecular weight polyethylene filament (UHMWPE) is a linear polyethylene with a molecular weight of more than 1 million and excellent comprehensive performance. Its heat deformation temperature is 85°C and its melting point is between 130-136°C. This patent uses ultra-high filament and wool fiber to process fabrics, adjusts the steaming process parameters, and avoids yarn strength attenuation caused by high steaming temperature, thereby ensuring fabric strength.

[0040] The low-temperature and high-humidity yarn steaming process is used to slightly shape the warp yarn in a low-temperature and high-humidity environment. The high-humidity environment helps the natural stretching of the fiber and reduces the static electricity of the yarn. The low temperature prevents the yarn from being strongly thermally attenuated due to excessive heat treatment. Through experiments, it is determined that the optimal lower machine group weight that matches the low-temperature and high-humidity yarn steaming is ≤0.45kg / piece. This process effectively reduces the strong thermal attenuation of ultra-high yarn, achieves yarn shape retention, and ensures smooth weaving.

[0041] In order to verify the effect of yarn steaming process on strength, experiments were conducted as shown in Table 3. The experimental materials were wool and 30D / 1 ultra-high molecular weight polyethylene strands, specifications: 8.3*2tex, experimental conditions: yarn steaming process 85℃x15min (two cycles):

[0042] Table 3 Experimental study on the effect of yarn steaming process on strength

[0043] Test 1 Test 2 Test 3 Test 4 Test 5 average value Unsteamed yarn 454 523 451 466 483 475.4 Steamed yarn 423 437 409 437 429 427

[0044] Combined with Table 3, it is found that when a fixed steaming process is used, it is found that steaming has a great influence on the strength of wool ultra-high molecular weight polyethylene. Analysis of the experimental data shows that steaming reduces the yarn strength by 10%.

[0045] In order to verify the influence of different temperature steaming process on strength, experiments were conducted as shown in Table 4:

[0046] Table 4 Effect of yarn steaming temperature on wool / ultra-high molecular weight polyethylene yarn strength

[0047] Yarn number Yarn steaming temperature / ℃ Yarn twist number (after steaming) Yarn strength / cN N1 75 35 483 N2 85 27 446 N3 95 25 418

[0048] Combined with Table 4, it is found that the steaming temperature has a great influence on the wool ultra-high molecular weight polyethylene yarn, which is mainly reflected in the two indicators of strength and twist. When the temperature is 75℃, the yarn twist number is large, which affects the weaving process. When the temperature is between 85-95℃, the twist number is stable, but the thermal attenuation of the ultra-high fiber at 95℃ is serious. Therefore, the steaming temperature is selected to be 85℃.

[0049] Repeated low-temperature drying effectively reduces the time the product stays in the high-temperature process, preventing the impact of high temperature on the strength of the product; the low-temperature short-time open decatizing method is used to further reduce the impact of high-temperature treatment on the strength of the product; steam ironing is used, and the temperature does not exceed 125 degrees Celsius, otherwise the ultra-high molecular weight polyethylene fiber will shrink abnormally and its strength will decrease.

[0050] The present invention carries out two groups of experiments. In the first group of experiments, 70% wool fiber and 30% ultra-high molecular weight polyethylene fiber are blended; the ply twist is 145; in the dyeing and finishing process, non-singeing secondary shearing, low-temperature repeated drying and low-temperature short-time open decatizing are adopted, the low-temperature repeated drying temperature is 60 degrees Celsius, the drying time is 15 minutes, and the number of repetitions is 3 times, and the low-temperature short-time open decatizing temperature is 80 degrees Celsius and the time is 20 minutes; in clothing processing, the steam ironing temperature is 120 degrees Celsius.

[0051] The second group of experiments used 80% wool fiber and 20% ultra-high molecular weight polyethylene fiber for blending; the twist degree was 150; during the dyeing and finishing process, non-singeing secondary shearing, low-temperature repeated drying and low-temperature short-time open decatizing were used, the low-temperature repeated drying temperature was 65 degrees Celsius, the drying time was 20 minutes, and the number of repetitions was 2 times, the low-temperature short-time open decatizing temperature was 85 degrees Celsius, and the time was 15 minutes; in clothing processing, the steam ironing temperature was 125 degrees Celsius.

[0052] The first type of fabric has two groups. The surface structure diagram of the first group of A yarn fabric is as follows: Figure 1 As shown, the surface structure diagram of the second group of B yarn fabric is as follows Figure 2 As shown, the yarns are arranged in the order of A yarn first row, B yarn first row, A yarn second row, B yarn second row, etc. Figure 3 As shown. With this kind of weaving, the white super-high yarn has a good covering effect on the fabric surface, and the white super-high yarn will not leak out of the fabric surface.

[0053] The second type of fabric has two groups. The surface structure diagram of the first group of weft A yarn fabric is as follows: Figure 4 As shown, the surface structure diagram of the second group of weft B yarn fabric is as follows Figure 5 As shown, the yarns are arranged in the order of weft A yarn first row, weft B yarn first row, weft A yarn second row, weft B yarn second row, etc. Figure 6 When this kind of weaving is adopted, the white ultra-high yarn cannot be well covered on the fabric surface, and the white ultra-high yarn leaks out of the fabric surface, affecting the appearance.

[0054] The warp and weft arrangement of the present invention is that the warp and weft yarns are arranged at intervals using ordinary yarns and super-high yarns, with the minimum interval being that the super-high yarn is interlaced once for every ordinary yarn and the maximum interval being that the super-high yarn is interlaced once for every 50 ordinary yarns, and the white super-high yarn is hidden on the cloth surface to achieve fabric reinforcement.

[0055] The effect of decatizing temperature on the strength of wool / ultra-high molecular weight polyethylene fabric is shown in Table 5.

[0056] Table 5 Effect of decatizing temperature on the strength of wool / ultra-high molecular weight polyethylene fabrics

[0057]

[0058] The experimental conditions in Table 5 are drying: 80℃x3min, 100℃x3min, 120℃x3min, and 2 cycles. The experimental results show that when the decatizing temperature is 80℃, the fabric strength is the best, and the static dimensional change rate is large, which affects the garment production and wearing performance. When the temperature is 120℃, the dimensional stability is good, and the strength attenuation is greater than that at 100℃. Finally, 100℃ is selected as the optimal decatizing temperature.

[0059] The above embodiments are only used to illustrate the method scheme of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, ordinary method personnel in the field should understand that they can still modify the method schemes recorded in the aforementioned embodiments, or replace some or all of the method features therein with equivalents, and these modifications or replacements do not make the essence of the corresponding method scheme deviate from the scope of the method scheme of the embodiments of the present invention.

Claims

1. A method for preparing a composite fabric of wool and ultra-high molecular weight polyethylene fiber, characterized in that: The method comprises spinning wool or wool blended single yarn and ultra-high molecular weight polyethylene fiber together to produce composite fabrics.

2. The method for making a wool and ultra-high molecular weight polyethylene fiber composite fabric according to claim 1, characterized in that: The composite fabric includes raw materials of wool or wool blended single yarn and ultra-high molecular weight polyethylene fiber, which are blended in a certain proportion.

3. The method for making a wool and ultra-high molecular weight polyethylene fiber composite fabric according to claim 2, characterized in that: The wool or wool blended single yarn is plied with ultra-high molecular weight polyethylene fiber, and the twist of the plied yarn is between 130 and 160.

4. The method for making a wool and ultra-high molecular weight polyethylene fiber composite fabric according to claim 3, characterized in that: In the yarn arrangement, the warp yarns and weft yarns are arranged alternately with ordinary yarns and super-high yarns, with the minimum interval being that the super-high yarn is interlaced once for every ordinary yarn, and the maximum interval being that the super-high yarn is interlaced once for every 50 ordinary yarns.

5. The method for making a wool and ultra-high molecular weight polyethylene fiber composite fabric according to claim 4, characterized in that: The dyeing and finishing process adopts the non-singing secondary shearing process, low-temperature repeated drying method and low-temperature short-time open decatizing method; Low temperature repeated drying method: The drying temperature is not higher than 70 degrees Celsius, the drying time is not less than 10 minutes, and the number of repetitions is not less than 2 times; In the low-temperature short-time open decatizing method, the temperature is not higher than 90 degrees Celsius and the time is not less than 15 minutes.

6. The method for making a wool and ultra-high molecular weight polyethylene fiber composite fabric according to claim 5, characterized in that: The temperature during garment processing does not exceed 125 degrees Celsius.

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