A method for spinning a short piece of vortex spinning colored yarn

Abstract

The application discloses a spinning method of vortex spinning short-segment segmental colored yarn, and the spinning method comprises the following steps: step 1, spinning a roving or a spun yarn with a certain twist as a decorative yarn; step 2, spinning a vortex spinning sliver; and step 3, spinning the sliver and the decorative yarn into the vortex spinning short-segment segmental colored yarn. The application overcomes the concept that vortex spinning cannot spin short-segment segmental colored yarn, and directly selects a spun yarn or a roving with a certain thickness and twist to be drafted at four rollers without increasing any servo motor and roller speed change, and meanwhile, normal fibers are normally drafted, the drafted fibers and the normal fibers are carded at a needle seat. The drafted fibers are affected by the flow direction of vortex air field, the head end of the drafted fibers is sucked into the core fibers in the spindle, and the tail end of the drafted fibers is exposed outside the core fibers due to the heavy weight of the drafted fibers, and the vortex spinning short-segment segmental colored yarn is prepared through a friction roller.

Description

Technical Field

[0001] This invention relates to a method for spinning yarn, and more particularly to a method for spinning short-segment colored yarn using vortex spinning. Background Technology

[0002] Vortex spinning technology has been operating in China for 20-30 years. Especially in recent years, there are approximately 2,000 vortex spinning machines in the Jiangsu and Zhejiang areas, and vortex spinning technology is gradually maturing. Vortex spinning equipment has a significant advantage in developing 20-40 count yarns, and the advantages of air-jet vortex spun products have been widely recognized by consumers, indicating a huge future market demand. However, the high cotton waste rate, low yarn strength, stiff hand feel, and severe homogenization during vortex spinning processing seriously restrict its development towards high quality, differentiation, and fashion. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a method for spinning short-segment colored yarn by vortex spinning.

[0004] The present invention provides a method for spinning short-segment colored yarn using vortex spinning, comprising:

[0005] Step 1: Spin a roving or fine yarn of a certain twist as decorative yarn;

[0006] Step 2: Spinning vortex sliver;

[0007] Step 3: The strips and decorative yarns are spun into vortex-spun short-segment colored yarns.

[0008] In a method for spinning short-segment colored yarn using vortex spinning according to the present invention, the decorative yarn is any fiber with a certain twist coefficient (100-300) and fineness (1TEX-60TEX).

[0009] In a method for spinning short-segment colored yarn using vortex spinning according to the present invention, the decorative yarn is any textile fiber processed by any spinning equipment.

[0010] In a method for spinning short-segment colored yarn using vortex spinning according to the present invention, a double-hole trumpet mouth needs to be installed at the back roller of the vortex spinning process, and a yarn tension device and a ceiling device need to be installed on the guide frame. The sliver and decorative yarn pass through the back roller of the vortex spinning process and enter the middle front roller. When the decorative yarn passes through the back middle front roller, it is cut into fiber segments of a certain length. The ordinary sliver passes through the vortex spinning spindle and needle seat. Under the action of the vortex, the fiber segments are exposed outside the ordinary core fiber. The short-segment colored yarn is formed by friction roller.

[0011] This invention overcomes the limitation that vortex spinning cannot produce short segments of colored yarn. Without adding any servo motors or roller speed changes, it directly selects fine or roving yarns of a certain thickness and twist, which are then drawn and cut at the four rollers. Simultaneously, ordinary fibers are normally drawn, and the cut fibers and normal fibers are combed at the needle station. Then, under the action of the vortex, the cut fibers are influenced by the flow direction of the vortex air field. Their fiber ends are absorbed and encased within the core fiber by the spindle, while the tail ends, due to their weight, are exposed outside the core fiber. Through the friction rollers, short segments of colored yarn are produced using vortex spinning. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the fabric spun by the vortex spinning method of the present invention, which produces short-segment colored yarn.

[0013] The present invention will be further illustrated by specific embodiments below, but the embodiments are for illustration only and do not limit the scope of the present invention.

[0014] In this invention, unless otherwise specified, all parts, quantities, and percentages are in units of weight, all raw materials are available from the market, and the illustrated fabric pieces are comparison images of the fabric surface effects of fabrics woven from yarns of different numbers, colors, and parameters. Detailed Implementation

[0015] Example 1

[0016] Prepare according to the following steps:

[0017] 1. Preparation of eddy current sliver:

[0018] The cotton rolls are made of fine denier white viscose with a specification of 1.33*38mm and are opened by a cotton cleaning machine (FA106C) to produce a basis weight of 350g / m.

[0019] The cotton lap is combed into a sliver of 20g / M by a carding machine (FA201B).

[0020] The carded sliver is combined twice by a drawing frame (FA386), and then controlled to a weight of 20g / 5m by an RSB-D35C self-regulating leveling drawing frame.

[0021] 2. Preparation of decorative yarn:

[0022] (1) Preparation of cotton rolls

[0023] Weigh 100KG of black cotton fiber, pack it with a baler, and then open it with a cotton cleaning machine (FA106C) to make a 300G / M cotton roll.

[0024] (2) Preparation of carded sliver and end-drawing sliver

[0025] The cotton lap is carded by a carding machine (FA201B) to produce a sliver with a weight of 18g / m. The sliver is then combined twice by a drawing frame (FA386) and then controlled by Rieter RSB-self-regulating leveling machine to achieve a weight of 20g / 5m.

[0026] (3) Preparation of roving. The final sliver is drafted and twisted on an FA456 roving frame to produce roving with a weight of 5.5g / 10m and a twist of 5.7.

[0027] (4) Preparation of decorative yarn

[0028] The roving is fed into the spinning frame (FA506) from the rear bell mouth of the spinning frame to spin a decorative yarn with an English count of 30S and a twist coefficient of 220.

[0029] 3. Preparation of short-segment colored yarn spun by vortex spinning

[0030] The spun 30S yarn is hung under the ceiling and passed through the rewinding frame and tension frame into the left side of the double-hole trumpet opening. The final drawing sliver passes through the right side of the double-control trumpet opening via the rewinding frame. After being drafted by the back, middle, and front rollers, the 30S yarn is cut into short fiber segments of 30mm-60mm under the action of the vortex spinning rollers. The sliver is then drafted into an even finer sliver. Both enter the needle seat at the front roller nip. The head of the short fiber segment is wrapped by the core fiber, while the tail is partially exposed due to gravity, while the sliver, as the main body, is wrapped inside, forming 3cm-6cm short segment vortex-spun colored yarn.

[0031] Parameter settings for vortex spinning short-segment yarn process

[0032] Yarn categories viscose blend Total Draft Ratio (TDR) 210 Spinning speed 400M / MIN Post-draw ratio (BDR) 3.2 Yarn count 30S Main draw ratio (MDR) 30 Upper roller spacing 45mm Spindle model C Lower roller spacing 39mm roller hardness 78 Feed ratio 1 Nozzle air pressure 0.53 MPa Spinning tension 120mN Post-rolla starting rate 120％ Spinning categories normal L Defect coarseness 99％ Nep defect thickness 400％ L Defect Length 12CM S Defect coarseness 300％ T-defect coarseness 50％ S Defect Length 8CM T-defect length 80CM

Claims

1. A method for spinning short-segment colored yarn using vortex spinning, characterized in that: The spinning method includes: Step 1: Spin a roving or fine yarn of a certain twist as decorative yarn; Step 2: Spinning vortex sliver; Step 3: The strips and decorative yarns are spun into vortex-spun short-segment colored yarns; The decorative yarn mentioned therein can be any fiber with a twist coefficient of 100-300 and a fineness of 1TEX-60TEX processed by any spinning equipment; A double-hole bell mouth is installed at the back roller of the vortex spinning process, and a yarn tension device and a ceiling device are installed on the guide frame. The sliver and decorative yarn pass through the back roller of the vortex spinning process and enter the middle and front rollers. When the decorative yarn passes through the back, middle and front rollers, it is cut into fiber segments of a certain length. The ordinary sliver passes through the vortex spinning spindle and needle seat. Under the action of the vortex, the fiber segments are exposed outside the ordinary core fiber. After passing through the friction roller, short segments of vortex-spun colored yarn are formed.

2. The method for spinning short-segment colored yarn using vortex spinning according to claim 1, characterized in that: Includes the following steps:

1. Preparation of eddy current sliver: The cotton rolls are made of fine denier white viscose with a specification of 1.33*38mm and opened by an FA106C cotton cleaning machine to produce a basis weight of 350g / m. The cotton lap is carded into a 20g / m sliver using an FA201B carding machine; The carded sliver is combined twice by the FA386 drawing frame, and then controlled to a weight of 20g / 5m by the RSB-D35C self-regulating leveling drawing frame; 2. Preparation of decorative yarn: (1) Preparation of cotton rolls Weigh 100KG of black cotton fiber, pack it with a baling machine, and then open it with an FA106C cotton cleaning machine to make a 300G / M cotton roll. (2) The carded sliver and the final drawn sliver lap are carded by the FA201B carding machine to produce a raw sliver of 18G / M. The raw strips are combined twice by an FA386 drawing frame, and then controlled by a Swiss Rieter RSB-self-adjusting uniformity control to achieve a weight of 20g / 5m; (3) Preparation of roving The final sliver is drafted and twisted on an FA456 roving frame to produce a roving with a weight of 5.5g / 10m and a twist of 5.

7. (4) Preparation of decorative yarn The roving is fed into the bell mouth at the back of the FA506 spinning frame to spin a decorative yarn with a count of 30S and a twist coefficient of 220.

3. Preparation of short-segment colored yarn spun by vortex spinning The spun 30S yarn is hung under the ceiling and passed through the rewinding frame and tension frame into the left side of the double-hole trumpet opening. The final drawing passes through the rewinding frame into the right side of the double-control trumpet opening. After being drafted by the back, middle and front rollers, the 30S yarn is cut into short fiber segments of 30MM-60MM under the action of the vortex spinning roller. The sliver is drafted into even finer slivers by the roller. Both enter the needle seat at the front roller nip. The head of the short fiber segment is wrapped by the core fiber, while the tail is partially exposed due to gravity. The sliver, as the main body, is wrapped in it, forming 3CM-6CM short segment vortex-spun colored yarn.

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