A method for preparing jointless differentiated fiber filament composite yarn twisted yarn

Abstract

The present invention provides a method for preparing a jointless differentiated fiber filament composite yarn skein, which belongs to the technical field of textile production and processing. The method of the present invention first prepares the skein: the design unit weight per skein is 2400 grams; the circumference of the skein is 240 cm; the design width of the skein is 14 cm-22 cm; the molding pattern arrangement mode is a precision winding arrangement mode, and the main technical parameters are as follows: ① target winding ratio 2.436, initial winding ratio 2.628; ② skein diameter surface slope 1%-5%; ③ differential micro-curve value 3mm-4mm; ④ differential micro-delay 1.0min-5min; ⑤ differential micro-amplitude 4mm-8mm; ⑥ differential micro-cycle 0.3min; ⑦ winding tension value: 30 grams-35 grams; ⑧ designed winding line speed: 500m / min-700m / min; then dyeing production and winding into bobbins are carried out. The method has high dyeing efficiency and produces a small amount of waste silk.

Description

Technical Field

[0001] The invention relates to a method for preparing a jointless differentiated fiber filament composite yarn twisted yarn, belonging to the technical field of textile production and processing. Background Art

[0002] Differentiated filament fiber composite yarns, with different fiber material combinations, content increase and decrease ratios, combination form changes, twisting process settings, etc., can present different visual and skin touch, and a variety of style changes, or soft and elegant, or dignified, or shaping and shaping, or gorgeous and luxurious, and have always been favored by the knitting garment industry, especially the knitting women's clothing industry. However, there are many technical difficulties in the yarn preparation process. Differentiated fiber is a filament composite yarn that is generally prepared by a combination of two or more fiber materials. Due to the different types of fibers, the shrinkage index and expansion coefficient are also different during the subsequent dyeing production and preparation due to the influence of humidity and temperature conditions. Therefore, the dyeing production of differentiated filament fiber composite yarns has always adopted the production mode of twisted yarn dyeing. In order to ensure the uniform dyeing and coloring of the yarn, the unit weight of the twisted yarn has been increased from 200 grams per twist in the past to 400 grams to 600 grams today. Although the unit twist weight has been greatly improved compared with the past, the low production efficiency, high dyeing cost, and stagnant yarn quality are still the main contradictions restricting the efficient development of the industry. Summary of the invention

[0003] The purpose of the present invention is to provide a method for preparing a jointless differentiated fiber filament composite yarn twisted yarn in view of the above-mentioned problems. By increasing the twist circumference, setting reasonable twist width parameters, scientifically setting the molding pattern arrangement mode, and reasonably setting the winding tension and other process technical indicators, a jointless differentiated filament fiber composite yarn twisted yarn with a unit twist weight of 2400 grams and a preparation method thereof are launched to the market.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A method for preparing a jointless differentiated fiber filament composite yarn twisted yarn, the method comprising the following steps:

[0006] (1) Preparation of skein: Design unit weight per skein is 2400g; skein circumference is 240cm; skein design width is 14cm-22cm; molding pattern arrangement mode is precision winding arrangement mode, the main technical parameters are as follows:

[0007] ① Target winding ratio 2.436, initial winding ratio 2.628;

[0008] ② The slope of the hank diameter is 1%-5%;

[0009] ③Difference curve value 3mm-4mm;

[0010] ④Differential delay 1.0min-5min;

[0011] ⑤The difference is 4mm-8mm;

[0012] ⑥Differential microcycle 0.3min;

[0013] ⑦ Winding tension value: 30g-35g;

[0014] ⑧ Designed winding speed: 500m / min-700m / min;

[0015] (2) Dyeing production;

[0016] (3) Winding the silk into tubes.

[0017] Furthermore, in the dyeing production, the dyeing amount of the unit dyeing nozzle with a working size of 1.8 meters is 26.4 kg, and the dyeing is carried out by using an active and acidic two-bath method.

[0018] Furthermore, the line speed in the winding process is set to 500 m / min and the winding tension is set to 18 grams.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] By increasing the twist circumference, setting reasonable twist width parameters, scientifically setting the molding pattern arrangement mode, and reasonably setting the winding tension and other process technical indicators, a differentiated filament fiber composite yarn twisted yarn with a unit twist weight of 2400 grams and no joints and a preparation method thereof are launched to the market. This method has high dyeing efficiency and produces a small amount of waste silk. DETAILED DESCRIPTION

[0021] A method for preparing a jointless differentiated fiber filament composite yarn twisted yarn, the method comprising the following steps:

[0022] (1) Preparation of skein: Design unit weight per skein is 2400g; skein circumference is 240cm; skein design width is 14cm-22cm; molding pattern arrangement mode is precision winding arrangement mode, the main technical parameters are as follows:

[0023] ① Target winding ratio 2.436, initial winding ratio 2.628;

[0024] ② The slope of the hank diameter is 1%-5%;

[0025] ③Difference curve value 3mm-4mm;

[0026] ④Differential delay 1.0min-5min;

[0027] ⑤The difference is 4mm-8mm;

[0028] ⑥Differential microcycle 0.3min;

[0029] ⑦ Winding tension value: 30g-35g;

[0030] ⑧ Designed winding speed: 500m / min-700m / min;

[0031] (2) Dyeing production;

[0032] (3) Winding the silk into tubes.

[0033] Furthermore, in the dyeing production, the dyeing amount of the unit dyeing nozzle with a working size of 1.8 meters is 26.4 kg, and the dyeing is carried out by using an active and acidic two-bath method.

[0034] Furthermore, the line speed in the winding process is set to 500 m / min and the winding tension is set to 18 grams.

[0035] Example 1:

[0036] Step 1: Preparation of skeins

[0037] 1. Yarn specifications and fiber material ratio: 1 / 24NMB viscose nylon filament composite yarn, viscose filament content 63.16%, nylon filament content 36.84%;

[0038] 2. The length of the skein preparation (meters of yarn winding): 56000m / skein, the design unit skein weight is 2400g;

[0039] 3. The travel of the guide rod for forming the twisted pattern is set to 22cm, and the twist width is set to 22cm;

[0040] 4. Twist frame circumference setting: 240cm, set the twist frame circumference to 240cm;

[0041] 5. Pattern forming mode and process parameter value setting:

[0042] (1) Target winding ratio 2.628, initial winding ratio 2.628;

[0043] (2) The radial slope of the hank is 1%;

[0044] (3) Differential curve value 4mm;

[0045] (4) Differential delay 5.0min;

[0046] (5) The difference is 4mm;

[0047] (6) Differential microcycle 0.3min;

[0048] (7) Winding tension value 30 g;

[0049] (8) Designed winding speed: 700m / min;

[0050] 6. Binding method and length of stranded wire: 6 strands and 8 bundles, stranded wire length 50cm;

[0051] Step 2: Dyeing production experiment

[0052] 1. The dyeing capacity of the unit dyeing nozzle (working size 1.8 meters) is 26.4kg;

[0053] 2. Dyeing method: active and acid two-bath method;

[0054] 3. Color setting: gray-blue;

[0055] 4. The outer layer, middle layer and inner layer of the skein are woven in a continuous piece, and the color difference of the outer, middle and inner layers of the skein yarn of the present invention is detected, so as to judge whether the pattern forming arrangement mode and process parameters of the skein yarn preparation of the present invention meet the quality requirements of the research and development design of the present invention;

[0056] Step 3: Winding the silk into a tube

[0057] 1. Set line speed: 500m / min;

[0058] 2. Winding tension: 18g;

[0059] 3. Observe the operation status of the winding and bobbin making process, record the number of wire breakages and the reasons for wire breakages during the winding and bobbin making process, and judge whether the twist width design of the twisted yarn of the present invention meets the quality requirements of research and development design.

[0060] Step 4: Test Report

[0061] 1 / 24NMB (14cm / 2400g) dyeing and silk drop effect analysis table

[0062]

[0063]

[0064] Example 2:

[0065] Step 1: Preparation of skeins

[0066] 1. Yarn specifications and fiber material ratio: 1 / 24NMB viscose nylon filament composite yarn, viscose filament content 63.16%, nylon filament content 36.84%;

[0067] 2. The length of the skein preparation (meters of yarn winding): 56000m / skein, the design unit skein weight is 2400g;

[0068] 3. The travel of the guide rod for forming the twisted pattern is set to 14cm, and the twist width is set to 14cm;

[0069] 4. Twist frame circumference setting: 240cm, set the twist frame circumference to 240cm;

[0070] 5. Pattern forming mode and process parameter value setting:

[0071] (1) Target winding ratio 2.436, initial winding ratio 2.436;

[0072] (2) The radial slope of the hank is 5%;

[0073] (3) Difference curve value 3mm;

[0074] (4) Differential delay 1.0min;

[0075] (5) The difference is 8mm;

[0076] (6) Differential microcycle 0.3min;

[0077] (7) Winding tension value 30 g;

[0078] (8) Designed winding speed: 700m / min;

[0079] 6. Binding method and length of stranded wire: 6 strands and 7 bundles, stranded wire length 45cm;

[0080] Step 2: Dyeing production experiment

[0081] 5. The dyeing capacity of the unit dyeing nozzle (working size 1.8 meters) is 26.4kg;

[0082] 6. Dyeing method: active and acid two-bath method;

[0083] 7. Color setting: gray-blue;

[0084] 8. The outer layer, middle layer and inner layer of the skein are woven in a continuous piece, and the color difference of the outer, middle and inner layers of the skein yarn of the present invention is detected, so as to judge whether the pattern forming arrangement mode and process parameters of the skein yarn preparation of the present invention meet the quality requirements of the research and development design of the present invention;

[0085] Step 3: Winding the silk into a tube

[0086] 4. Set line speed: 500m / min;

[0087] 5. Winding tension: 18g;

[0088] 6. Observe the operation status of winding and bobbin making throughout the whole process, record the number of wire breakages and the reasons for wire breakages during the winding and bobbin making process, and judge whether the twist width design of the twisted yarn of the present invention meets the quality requirements of research and development design.

[0089] Step 4: Test Report

[0090] 1 / 24NMB (14cm / 2400g) dyeing and silk drop effect analysis table

[0091]

[0092] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A method for preparing a jointless differentiated fiber filament composite yarn twisted yarn, characterized in that: The method comprises the following steps: (1) Preparation of skein: Design unit weight per skein is 2400g; skein circumference is 240cm; skein design width is 14cm-22cm; molding pattern arrangement mode is precision winding arrangement mode, the main technical parameters are as follows: ① Target winding ratio 2.436, initial winding ratio 2.628; ② The slope of the hank diameter is 1%-5%; ③Difference curve value 3mm-4mm; ④Differential delay 1.0min-5min; ⑤The difference is 4mm-8mm; ⑥Differential microcycle 0.3min; ⑦ Winding tension value: 30g-35g; ⑧ Designed winding speed: 500m / min-700m / min; (2) Dyeing production; (3) Winding the silk into tubes.

2. The method for preparing a jointless differentiated fiber filament composite yarn twisted yarn according to claim 1, characterized in that: In the dyeing production, the dyeing amount of a unit dyeing nozzle with a working size of 1.8 meters is 26.4 kg, and the dyeing is carried out by using an active and acid two-bath method.

3. The method for preparing a seamless differentiated fiber filament composite yarn twisted yarn according to claim 1, characterized in that: The line speed in the bobbin winding process is set at 500 m / min and the winding tension is 18 g.

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