Semitransparent high-strength yarn processing technology

Abstract

The invention discloses a semitransparent high-strength yarn processing technology, and belongs to the technical field of yarn processing. The processing technology is characterized in that monofilament polyester or chinlon is used as a raw material for preparation, the processing technology comprises the three steps of A, reeling, B, primary twisting, secondary twisting, traction treatment and high-temperature setting aging treatment to obtain finished yarn and C, constant-temperature aging treatment, and the step B is complex in operation and comprises primary twisting, B1, primary traction treatment; b2, high-temperature setting and aging treatment; b3, carrying out secondary twisting treatment by using a false twister; b4, carrying out traction treatment for the second time; b5, rolling and forming; and finally carrying out constant-temperature aging treatment in the step C to obtain the finished product semitransparent yarn. According to the processing technology of the semitransparent high-strength yarn, the semitransparent yarn can be prepared only by a single false twisting machine; meanwhile, the transparent and adjustable effect of the yarn can be achieved by controlling the opening duration of the false twister and the opening interval of each time.

Description

Technical Field

[0001] The invention belongs to the technical field of yarn processing, and in particular relates to a semi-transparent high-strength yarn processing technology. Background Art

[0002] Translucent, hazy fabrics have always been an important raw material for high-end clothing products, and there is a great demand in the market. There are currently two methods for producing this type of fabric: one is to directly use untwisted raw yarn, use the gas dotting method to bundle the strands in the raw yarn together, and then weave it into fabric. Due to the lack of twisting, this type of yarn has low strength, is not resistant to high temperatures, is prone to pilling, and is difficult to wash. The second is to first twist the raw yarn with a doubling machine, then lead the yarn to a false twisting machine for false twisting, use the false twister to break up the strands in the raw yarn, and finally weave it into fabric. This type of process requires the raw yarn to be threaded through two devices, which occupies a large amount of space, and the manual operation is complicated and labor-intensive. Moreover, the false twister acts very evenly on the strands, and cannot achieve adjustable transparency, and the application scenarios of the produced fabrics are narrow. Summary of the invention

[0003] The present invention mainly solves the technical problems existing in the above-mentioned prior art and provides a semi-transparent high-strength yarn processing technology.

[0004] 1. The above technical problem of the present invention is mainly solved by the following technical solution: a semi-transparent high-strength yarn processing technology, the processing steps include:

[0005] Step A: quantitatively packing the single fiber cakes by a winding machine and performing cannonball-shaped winding on a bobbin;

[0006] Step B: placing the original yarn after winding in step A on the spindle on the false twisting machine for primary twisting, the twist direction is one of the Z direction and the S direction, and after the primary twisting, it is subjected to multiple traction treatments, heating and shaping, false twisting machine re-twisting treatment and second traction treatment to obtain the finished yarn. The specific steps of traction treatment, heating and shaping and false twisting treatment are as follows:

[0007] B1: the first drawing process, controlling twist and yarn tension;

[0008] B2: The hot box controls the temperature to perform high-temperature setting and aging treatment on the yarn after the first drawing treatment;

[0009] B3: The false twister is driven by a motor to start and stop at a fixed time. When the false twister is turned on, the original yarn fibers are scattered by re-twisting to obtain a fluffy and transparent yarn. The re-twisting is the reverse of the initial twisting. When the false twister is stopped, the original yarn is only twisted by the initial twist to obtain a thin and solid non-transparent yarn.

[0010] B4: The second traction treatment produces a section of fine, solid, opaque and a section of fluffy, translucent finished yarn;

[0011] B5: Rolling and forming;

[0012] Step C: Aging treatment, which is to control the temperature in a steamer to shape the yarn and eliminate the internal stress generated during the yarn processing in step B;

[0013] Preferably, the monofilament in step A is polyester or nylon.

[0014] Preferably, the twist of the original yarn in step B is 280-480 T / M.

[0015] Preferably, in step B, the high temperature setting and aging treatment of the yarn after the first drawing treatment is performed at a temperature of 170 to 220° C. for a duration of 0.5 to 1.5 seconds.

[0016] Preferably, in step B, the time interval between starting and stopping the false twister driven by the motor is 0.5s, and the false twister is started and operated for 1s each time.

[0017] Preferably, the twist of the yarn re-twisting treatment in step B is 650-1250 T / M.

[0018] Preferably, the aging treatment in step C is performed at a temperature of 90° C. to 120° C. for 2 hours.

[0019] The present invention has the beneficial effects:

[0020] Compared with the prior art, the invention uses the spindle on the false twist machine to perform the initial twist on the original yarn after winding, and then uses the false twist machine to perform the first traction treatment, high-temperature shaping and aging treatment, false twister re-twisting treatment and second traction treatment in sequence, and then winds up to obtain a section of fine, solid, opaque and a section of fluffy, translucent yarn, so that a single false twist machine can be used to make translucent finished yarn, which has the advantages of simple operation and small space occupation, and yarns with different light transmittances can be obtained by controlling the start and stop time of the false twister and the time interval between the two starts of the false twister, so that the transparency of the yarn can be adjusted, and the finished yarn is suitable for weaving translucent fabrics on textile machinery such as knitting machines and large circular machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a process flow diagram of step A of the present invention;

[0022] Figure 2 It is a process flow diagram of step B of the present invention;

[0023] Figure 3 It is a schematic diagram of the process flow of the yarn re-twisting treatment in step B of the present invention. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0025] The following are examples and the attached Figure 1-Figure 3 The structure is shown in the figure, and the technical solution of the present invention is further specifically described.

[0026] Embodiment: A process for processing a semi-transparent high-strength yarn, such as Figure 1-Figure 3 As shown, the specific production process steps are:

[0027] Step A, such as Figure 1 As shown, a single fiber cake is quantitatively packaged by using a winding machine, and cannonball-shaped winding is performed on the bobbin;

[0028] Step B, placing the raw yarn obtained after the treatment in step A on the spindle on the false twisting machine for preliminary twisting, selecting one of the twisting directions S and Z, and after the preliminary twisting, undergoing the first traction treatment, heating and shaping, false twister re-twisting treatment and the second potential treatment to obtain the finished yarn, the specific steps are:

[0029] B1, the first drawing treatment, controlling twist and yarn tension;

[0030] B2, the hot box controls the temperature to perform high temperature setting and aging treatment on the yarn after the first drawing treatment;

[0031] B3, the computer board controls the motor to drive the false twister to start and stop at a fixed time. The false twister performs a re-twisting process on the heated and fixed yarn. The false twister is a rotor-type false twister. The re-twisting is the reverse of the initial twisting. When the false twister is turned on, the original yarn fibers passing through are scattered to obtain a section of fine, solid and opaque yarn. When the false twister is stopped, the yarn is only twisted to obtain a section of fine, solid and opaque yarn.

[0032] B4, after the second traction treatment, a section of fine, solid and opaque yarn and a section of fluffy and translucent finished yarn are obtained;

[0033] B5, rolling and forming;

[0034] Step C, aging treatment, temperature control and shaping in a steamer, while eliminating the internal stress generated during yarn processing in step B;

[0035] The material of the single fiber cake in step A is polyester or nylon;

[0036] The twist of the initial twist of the original yarn in step B is different according to the thickness of the original yarn. Specifically, when the thickness of the original yarn is 150D-300D, the twist is 400T / M-480T / M, when the thickness of the original yarn is 350D-600D, the twist is 350T / M-380T / M, and when the thickness of the original yarn is 700D-1000D, the twist is 280T / M-300T / M;

[0037] In step B, when the hot box performs high-temperature setting and aging treatment on the yarn after the first traction treatment, the temperature is different depending on the material of the yarn. Specifically, when the yarn material is nylon, the hot box temperature is 170-190°C, and when the yarn material is polyester, the hot box temperature is 200-220°C, and the duration is 0.5-1.5s.

[0038] The motor driving the false twister to start and stop in step B is controlled by a computer board. When in use, the motor driving the false twister to start and stop and the interval between each start and stop are controlled according to the production demand of the yarn. In this embodiment, the false twister is started for 1 second each time, and the interval from the false twister stopping to the next start is 0.5 second. During the time when the false twister stops, the yarn is a thin, solid, and opaque thin line. After the false twister is turned on, the yarn is re-twisted to break up the fibers inside the yarn, and the yarn is a fluffy and translucent thick line. The interval start and stop of the false twister cycle can obtain a section of thin line and a section of thick line that is twice the length of the thin line.

[0039] When the false twister performs a re-twisting process on the yarn in step B, the twist of the re-twisting of the yarn is different according to the different yarn thickness. Specifically, when the yarn thickness is 150D to 300D, the twist of the re-twisting (false twisting) is 1000T / M to 1250T / M, when the yarn thickness is 350D to 600D, the twist of the re-twisting (false twisting) is 800T / M to 950T / M, and when the yarn thickness is 700D to 1000D, the twist of the re-twisting (false twisting) is 650T / M to 750T / M.

[0040] The temperature of the steamer in step C varies according to the material of the yarn. When the yarn is made of nylon, the yarn is placed in the steamer and heated to 90°C for 2 hours. When the yarn is made of polyester, the yarn is placed in the steamer and heated to 120°C for 2 hours.

[0041] Finally, the yarn treated in step C is applied to a knitting machine or a circular knitting machine and the like to be woven into the desired translucent high-strength fabric.

[0042] Finally, it should be pointed out that the above embodiments are only representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention should be considered to belong to the protection scope of the present invention.

Claims

1. A translucent high-strength yarn processing process, characterized in that: The processing steps include: Step A: quantitatively packing the single fiber cakes by a winding machine and performing shell-shaped winding on the bobbin; Step B: placing the original yarn after winding in step A on the spindle on the false twisting machine for primary twisting, the twist direction is one of the Z direction and the S direction, and after the primary twisting, it is subjected to multiple traction treatments, heating and shaping, false twisting machine re-twisting treatment and second traction treatment to obtain the finished yarn. The specific steps of traction treatment, heating and shaping and false twisting treatment are as follows: B1: the first drawing process, controlling twist and yarn tension; B2: The hot box controls the temperature to perform high-temperature setting and aging treatment on the yarn after the first drawing treatment; B3: The false twister is driven by a motor to start and stop at a fixed time. When the false twister is turned on, the original yarn fibers are scattered by re-twisting to obtain a fluffy and transparent yarn. The re-twisting is the reverse of the initial twisting. When the false twister is stopped, the original yarn is only twisted by the initial twist to obtain a thin and solid non-transparent yarn. B4: The second traction process produces a thin, solid, opaque and fluffy, translucent finished yarn; B5: Rolling and forming; Step C: Aging treatment, which uses a steamer to control the temperature and shape the yarn, while eliminating the internal stress generated during the yarn processing in step B.

2. A translucent high-strength yarn processing process according to claim 1, characterized in that: In step A, the monofilament is polyester or nylon.

3. A translucent high-strength yarn processing process according to claim 1, characterized in that: The twist of the original yarn in step B is 280-480 T / M.

4. A process for processing translucent high-strength yarn according to claim 1, characterized in that: In the step B, the high temperature setting and aging treatment of the yarn after the first drawing treatment is carried out at a temperature of 170 to 220° C. and a duration of 0.5 to 1.5 seconds.

5. The process for processing translucent high-strength yarn according to claim 1, characterized in that: In step B, the time interval between the start and stop of the motor-driven false twister is 0.5s, and the false twister is started and operated for 1s each time.

6. The process for processing a semi-transparent high-strength yarn according to claim 1, characterized in that: The twist of the yarn re-twisting treatment in step B is 650-1250 T / M.

7. The process for processing a semi-transparent high-strength yarn according to claim 1, characterized in that: The aging treatment in step C is performed at a temperature of 90° C. to 120° C. for 2 hours.

Images