KR20240020119A - Handbag knitting yarn and its processing method and its processing device - Google Patents

Abstract

The present invention relates to bag knitting yarn, which is used to make bags and other small items, by heat-treating the surface of synthetic yarns, including polyester, to have excellent reflectivity and durability by improving frictional stress, and to a processing method and processing device thereof, Using a bag knitting yarn processing device consisting of a processing nozzle consisting of a heater, a stand, a winder, and an annealing roller, knitting is made of plied yarn, twisted yarn, and tube yarn using polyester, nylon, or polypropylene. By carrying out a surface hardening step of surface hardening by passing the knitting yarn constituting the synthetic fiber yarn; a traction step; and a stabilization step; the bag knitting yarn having a smooth reflective surface is obtained by melting the surface as well as twisting.

Description

Handbag knitting yarn and its processing method and its processing device}

The present invention relates to bag knitting yarn used to make bags and other small items, and to its processing method and processing equipment. Specifically, the present invention relates to a bag knitting yarn used to make bags and other small items, and specifically to a bag made by heat-treating the surface of synthetic yarns, including polyester, to have excellent reflectivity and durability by improving frictional stress. It relates to knitting yarn and its processing methods and processing equipment.

The yarn is processed with regard to special quality characteristics for the final product.

In particular, synthetic fiber fabrics are widely used because they are superior in durability and ease of storage compared to natural fiber fabrics and semi-synthetic fiber fabrics. However, compared to natural fiber fabrics and semi-synthetic fiber fabrics, they are inferior in aesthetics and feel, so they are used in various ways. There has been improvement.

One of the areas of improvement in this way is to provide a property called stretch. There is a method of providing stretch by mixing polyurethane-based fibers in the fabric, but polyurethane-based fibers are a property inherent to polyurethane and provide a tactile feel. Due to this hardness, there was a problem in that the feel and drapability of the fabric deteriorated.

In addition, polyurethane-based fibers are not dyed with polyester dyes, and even if used together with polyester fibers, the dyeing process becomes complicated and it is difficult to dye the desired color, so polyurethane-based fibers and false twisted yarns are not used. As such, polyester fibers using parallel composites of polymers are often proposed.

In general, compared to other props made by knitting, which are mechanically made and give a harsh feel, the props can contain the knitter's sincerity, create a natural atmosphere, and give consumers a soft and warm texture. It can give you a friendly feeling.

It also has the advantage of being able to freely create various patterns and colors depending on the taste of the knitter.

Despite the above-mentioned advantages, knitting items have been limited to products that people wear directly, such as sweaters, gloves, scarves, socks, and hats.

The reason why the uses of knitting products are limited can be traced to the knitting yarn used for knitting.

In order to improve these characteristics, the prior art and patent documents that have been developed and patented so far are examined as follows.

Patent Application No. 10-1998-0056950 (December 21, 1998) is a service loom for knitting, more specifically, knitting (products made by knitting), such as mats, cushions, or small bags. Disclosed is a service loom for knitting that can weave service life, which is a thick yarn used for knitting. The disclosed service loom for knitting includes a hollow rod-shaped column in which a plurality of axial slit grooves are arranged in the circumferential direction; A crochet needle placed in each slit groove so as to be able to move up and down along the slit groove of the column, and having a hook-shaped nose at the top, a cover pin hinged directly below the nose, and a moving piece protruding outside the slit groove at the bottom; A rotating body that sequentially elevates and lowers the moving pieces of the crochet needle while rotating around the outer periphery of the column; A driving body that rotates the rotating body; A loading piece that is fixed to the upper part of the driving body and rotates with the driving body so that the process chain thread is continuously threaded onto the crochet needle that is sequentially raised from the slit groove of the column; and a tensioning means for tensioning the yarn that is woven with a crochet hook and descends through the inside of the column. This allows for weaving a thick yarn that can be knitted, thereby diversifying products that can be knitted into larger products. You can. Patent Application No. 10-2000-0030698 (2000.06.05) is a practical yarn, characterized in that the stress for 50% elongation of the yarn after heat treatment is 30×10-³ cN/dtex or less and the recovery rate is 60% or more. It relates to a soft stretch yarn made of polyester. Preferably, the Uster stain is 2.0% or less and the crimp diameter is 250 μm or less. In addition, this soft stretch yarn is preferably an eccentric composite yarn made of two types of polyester containing polytrimethylene terephthalate (PTT) as one component, spun at a spinning speed of 1200 m/min or more, and a stretching temperature of 50 to 80°C. By stretching and heat fixing the drawn yarn at a draw ratio of 20 to 45%, it is possible to solve the problems of excessive tightness and roughening of the fabric, which have been problems in the past, and provide a fabric with softer stretch properties. there is Patent Application No. 10-2000-0052672 (2000.09.06) is a cylindrical woven cotton yarn for knitting used as knitting yarn for knitting carpets, cushions, baskets, handbags, etc. with pure cotton knits. It relates to a cylindrical cotton yarn having warp and weft yarns arranged and formed at a certain pitch by continuously weaving pure cotton yarn in a cylindrical shape, and the warp direction of this cylindrical cotton yarn. It has at least one incision formed along the surface. The incisions are formed at a pitch greater than the standard pitch of the inclined arrangement, preferably at a size equivalent to the size of 2 to 4 needle noses. This cut improves the flexibility of the cylindrical woven cotton yarn, allowing the cotton yarn to be freely folded or bent. According to this, pure cotton knitted fabrics, such as relatively large-scale carpets, cushions, baskets, handbags, etc., can be easily knitted, and also, when knitted pure cotton knitted fabrics, no protrusions are formed in parts that are bent in a curved or angular shape, so the product The quality can be further improved. Patent Application No. 0-2001-7011067 (2001.08.30) relates to a method for processing spun and prepared yarn within a processing body, characterized in that the filaments are joined during the movement step by slightly crossing the filaments. It is being done. The effect of the new method is to optimally distribute the added agent in the same element in a moving step across the yarn or filament, by the slight crossing of the filaments and by the uniform distribution of the agent on the filament surface when the agent is added. Dispensing can be individualized to improve the effectiveness of the preparation. Patent Application No. 10-2005-0029521 (April 8, 2005) discloses a yarn processing machine for producing multi-component yarns, which consists of a mounting device for mounting a nozzle, and an air-covering machine in which a core yarn and at least one covering yarn are supplied in the yarn inflow direction. A yarn processing machine consisting of an air-covered nozzle with a nozzle axis, and a method for re-equipping the yarn processing machine, wherein the yarn processing machine for producing multiple jets consists of a mounting device for mounting the nozzle, the air-covered nozzle and The mounting device for mounting an air-processing nozzle is configured as a nozzle. Patent Application No. 10-2005-0029522 (2005.04.08) provides at least a method comprising supplying a filament yarn flowing with filament yarn tension to a texture processing device and processing the filament yarn using the texture processing device. A yarn processing method for producing one decorative yarn from one filament yarn is provided, and the filament yarn tension is determined by controlling each filament yarn stock repeatedly supplied to the yarn path before supplying the filament yarn to the processing device. The case is repeatedly reduced over time by producing it repeatedly. Patent Application No. 10-2005-0077919 (August 24, 2005) is a method for securing yarn quality and a yarn processing device for executing the method, including at least one supply spool installed to accommodate each of at least one supply spool from which yarn is separated. It consists of a spool receiver and a multifilament yarn manufacturing unit in which yarn has respective yarn tension and is supplied from the supply spool through a yarn path, and a yarn tension control module with a yarn tension sensor controls the supply spool receiver and the multifilament yarn. It is disposed on at least one controlled thread path between manufacturing units, and the thread tension adjustment module derives a control value from the thread tension measured by the thread tension sensor and keeps the thread tension constant within a predetermined thread tension range. It is set to remain that way. Patent Application No. 10-2007-0090112 (2007.09.05) relates to a manufacturing method of an air twist nozzle for thread processing and the nozzle, including a main hole for ventilating pressurized fluid (compressed air, etc.) and the upper part of the main hole. By manufacturing an air twist nozzle through wire cutting processing capable of fine, precise, and high-speed processing to supply compressed air to the spin portion through the second vertical portion that forms an air slit that overlaps with the conventional thin rib electrode. The low processing precision that occurs in electrical discharge machining can be replaced with ultra-precision processing, and productivity can be significantly increased by reducing the long processing time. As a result, the manufacturing cost can be lowered and the yarn processing can be expected to achieve economical savings. A method of manufacturing an air twist nozzle and the nozzle, comprising the steps of drilling a main hole in the nozzle body; and cutting a passage for thread input in a direction intersecting the main hole, cutting a first vertical portion connected to the cut portion and matching the direction of forming the main hole, and an upper end of the first vertical portion. A wire cutting step consisting of a spin portion forming step located in and a second vertical portion cutting step located below the first vertical portion and overlapping the upper portion of the main hole at a certain section to form an air slit. It also includes, Looking in detail at the main components of the air twist nozzle manufactured by the above manufacturing method, it includes a main hole formed inside the body; A passage opening on the side of the body to allow entry and exit of the room; a first vertical portion connected to the passage and coincident with the direction of forming the main hole; a spin portion located at the top of the first vertical portion; and a second vertical part located below the first vertical part and overlapping the upper part of the main hole for a certain period to form an air slit. Patent Application No. 10-2015-0027837 (2015.02.27) relates to the organizational structure of knitting yarn woven through a warp knitting machine, and as a feature of its composition, it consists of multiple DTY yarns twisted at 180TM (180 turns) and woven together. Vertical screening; Wing yarns in which one or more filament yarns are twisted at 100TM (100 turns) to maintain a predetermined spacing or width in the horizontal direction on the core; And a double twist part in the shape of an 8 so that the wing yarn is fixed to the core yarn to prevent separation of the wing yarn from the core yarn, wherein the fixing force is strengthened from the double twist part to prevent separation of the wing yarn from the core yarn. Fabrics made with thread have the effect of preventing hair from coming out. Utility Model Registration Application No. 20-2005-0006021 (2005.03.07) refers to the basic twisted yarn obtained by plying ordinary synthetic yarn with a functional yarn having a specific effect, and re-plying it into multiple strands. This is a knitting yarn that is twisted in the opposite direction to the first yarn, where the functional yarn is bamboo yarn, and the synthetic yarn is rayon yarn or acrylic yarn of the same thickness and nylon yarn of the same thickness, due to the stiff nature of the nylon yarn. It is a composition in which properties similar to those of hard fiber are given to the knitting yarn containing the bamboo yarn as the main ingredient.

However, knitting threads up to now are not only unsuitable for knitting bags or small items because they are mainly for clothing, but also lack stability in shape due to the unique elasticity and elasticity of knitted fabrics, are weak in durability due to friction, and pilling phenomenon occurs. Of course, it did not solve the problem of low resistance to heat and moisture.

The present invention processes synthetic resin threads (polyester, nylon, polypropylene, etc.) to make bags to provide surface reflectivity and surface hardness, and reduces deformability to stabilize the shape of the finished product, as well as improve durability and The purpose is to improve the aesthetics and practicality of knitted products by improving moisture resistance.

The present invention, which aims to achieve the above object, sets up a processing nozzle equipped with a heater on a table equipped with a motor, configures a stand for supplying thread in front of the processing nozzle, and drives the thread at the rear of the processing nozzle by a motor. A bag knitting yarn processing device is comprised of a winder that operates in conjunction with the winder and an annealing roller that pulls the bag knitting yarn pulled from the winder taut, cools it, and simultaneously presses and stabilizes the surface.

A knitting yarn construction step of using the processing device to construct synthetic fiber yarn for knitting made of polyester, nylon, or polypropylene into ply, twisted yarn, and tube yarn; and, a knitting yarn made of synthetic fiber yarn constructed in the knitting yarn construction step. A surface hardening step of surface hardening treatment by passing a processing nozzle heated at a high temperature of 310 to 350°C at a speed of 6 m to 16 m/min; and pulling the bag knitting yarn surface hardened in the surface hardening step at a constant speed. A pulling step; A stabilization step of holding the bag knitting yarn towed in the pulling step tautly to maintain its original shape by pulling the bag taut and stabilizing it by pressing the surface at the same time; And, deformation in the stabilization step To prevent this from happening, a box storage step of purchasing stabilized bag knitting yarn and putting it in a box; and a commercialization step of winding the bag knitting yarn stored in the box into a convenient ball-shaped bundle are performed.

By implementing the above-described processing method, synthetic knitting fiber yarns made of polyester, nylon, and polypropylene and made of braided yarn, twisted yarn, and tube yarn are surface hardened by heat treatment to create a smooth reflective surface by melting the surface as well as warping. Obtain the constructed bag knitting yarn.

In order to make a bag, the present invention processes synthetic resin threads (polyester, nylon, polypropylene, etc.) by surface hardening by heat to give them reflectivity to improve aesthetics and hardenability to improve durability and moisture resistance. It is a bag knitting yarn that creates a new effect of reducing deformability and stabilizing the shape of the finished product.

1 is a process diagram illustrating the implementation steps of the present invention.
Figure 2 is an exemplary configuration diagram of a device for carrying out the present invention.
Figure 3 is an exploded view illustrating the configuration of the processing nozzle, which is the main part of the present invention.
Figure 4 is an assembly diagram illustrating the configuration of the processing nozzle, which is the main part of the present invention.
Figure 5 is an example of the state of bag knitting yarn before processing.
Figure 6 is an illustration of the state after processing of the bag knitting yarn according to the present invention.

The bag knitting yarn processing apparatus and processing method for carrying out the present invention, and the bag knitting yarn obtained by carrying out these processes will be described in detail as follows.

Example of configuration of bag knitting yarn processing device

A table (10) equipped with a motor (15); And,

A processing nozzle 20 set on the table 10 and forming a heater 25; and

It is installed in front of the processing nozzle 20 and holds a bobbin 35 on which knitting synthetic fiber yarn made of polyester, nylon, or polypropylene and made of braided yarn, twisted yarn, or tube yarn is wound, thereby producing synthetic fiber for knitting. A holder (30) for supplying synthetic fiber yarn for knitting that supplies yarn;

A winder 40 installed behind the processing nozzle 20 and driven by the power of the motor 15, and pulling the synthetic fiber yarn for knitting so that it passes through the processing nozzle 20 and becomes surface-hardened bag knitting yarn; and,

It consists of an annealing roller 50 that works in conjunction with the winder 40 to tighten and cool the bag knitting yarn pulled from the winder 40 and at the same time presses the surface to stabilize the shape.

Here, the processing nozzle 20 is pipe-shaped with a processing passage 21 through which the knitting synthetic fiber yarn passes in the center, and a guide portion 22 is formed on the inlet side.

The processing nozzle 20 constructed in this way has an insulating layer 28 formed on its inner surface and is mounted on the center line of a cylindrical housing 26 in which a cylindrical heater 25 is mounted in a heating chamber 27 formed therein.

At this time, the cylindrical heater 25 is spaced apart from the heat insulating layer 28 formed on the inner wall of the cylindrical housing 26 and is also spaced apart from the processing nozzle 20 to form a structure that heats the heating chamber 27.

That is, the heat of the heater 25 heats the heating chamber 27 and the heat source of the heating chamber 27 heats the machining nozzle 20. This is an indirect heating method, in which the heat of the heater 25 is directly applied to the machining nozzle 20. It is configured to be delivered indirectly rather than being passed on.

The reason why the heat of the heater 25 is not directly transmitted to the processing nozzle 20 but is transmitted indirectly is to prevent the surface of the knitting synthetic fiber yarn from burning or sticking during processing.

And the winder 40 and the annealing roller 50 each consist of two rollers engaged with gears to rotate simultaneously.

At this time, the winder 40 and the annealing roller 50 are configured to work together at the same speed.

The unexplained code 29 is a safety cover.

Example of bag knitting yarn processing method

Knitting yarn construction stage;

It is made of polyester, nylon, and polypropylene and is woven into synthetic fiber yarn for knitting using Lilian machines, using plywood, twisted yarn, and tube yarn.

In this way, weaving with the Lilian machine is a universal technique and can be applied to all knitting yarns.

During the manufacturing process, knitting yarn woven as described above inevitably produces irregularities and irregularities on the surface.

Therefore, the surface absorbs light rather than reflecting it, deteriorating the aesthetics produced.

In addition, because the yarn had great elasticity and fluidity, the finished knitted product did not maintain the desired shape, and its excellent moisture absorption rate was a factor in degrading its function as a product.

Surface hardening step;

The knitting yarn made of synthetic fiber yarn constructed in the knitting yarn construction step passes through the processing passage 21 of the processing nozzle 20 heated to a temperature of 310 to 350° C. by indirect heat by the heater 25 at a speed of 6 m to 16 m/min. This melts the irregularities on the surface and simultaneously melts and hardens the exposed surface to become a reflective surface.

At this time, the temperature of the processing nozzle 20 and the passing speed of the knitting yarn are important criteria for selecting the quality of the product.

Therefore, if the temperature of the processing nozzle 20 and the passing speed of the knitting yarn are subdivided according to the color of the knitting yarn made of synthetic fiber yarn,

1. Knitting yarn made of bright (white) colored synthetic fiber yarn is passed through the knitting yarn at a speed of 6m~10m/min while maintaining the temperature of the processing nozzle at 340~350℃.

At this time, if the temperature of the processing nozzle 20 is less than 340°C, the surface hardening treatment will be defective, and if it is above 350°C, it may over-melt and become stiff or deform and lose its function as a knitting yarn.

If the speed of the knitting yarn passing through the processing nozzle 20 is less than 6 m/min, there is a risk of excessive melting and a decrease in productivity, and if it is more than 10 m/min, processing defects may occur.

According to the results of the present inventor's experiment, the best bag knitting yarn could be obtained when processed through the processing nozzle 20 at a speed of 8 m/min under the above temperature conditions.

2. Knitting yarn made of dark (black) colored synthetic fiber yarn is passed through the processing nozzle 20 at a speed of 13m~16m/min while maintaining the temperature of 330~350℃.

At this time, if the temperature of the processing nozzle 20 is less than 330°C, the surface hardening treatment will be defective, and if it is above 350°C, it may over-melt and become stiff or deform and lose its function as a knitting yarn.

If the speed of the knitting yarn passing through the processing nozzle 20 is less than 13 m/min, there is a risk of excessive melting and a decrease in productivity, and if it is more than 16 m/min, processing defects may occur.

According to the results of the present inventor's experiment, the best bag knitting yarn could be obtained when processed through the processing nozzle 20 at a speed of 15 m/min under the above temperature conditions.

3. Knitting yarn made of synthetic fibers in intermediate colors of light (white) and dark (black) colors is passed at a speed of 10 m to 13 m/min while maintaining the temperature of the processing nozzle 20 at 320 to 340°C.

At this time, if the temperature of the processing nozzle is less than 320℃, the surface hardening treatment will be defective, and if it is higher than 340℃, it may over-melt and become stiff or deform and lose its function as a knitting yarn.

Additionally, if the speed of the knitting yarn passing through the processing nozzle 20 is less than 10 m/min, overmelting may occur and productivity may decrease, and if it exceeds 13 m/min, processing defects may occur.

According to the results of the present inventor's experiment, the best bag knitting yarn could be obtained when processed through the processing nozzle 20 at a speed of 11 m/min under the above temperature conditions.

Towing stage;

In the surface hardening step, the surface hardened bag knitting yarn is pulled at a speed appropriate for processing.

The traction speed at this time is omitted since it was set in the surface hardening step.

However, in this pulling step, the knitting yarn passing through the processing nozzle is pulled and the speed of the knitting yarn passing through the processing nozzle is determined.

At this time, the winder 40 that performs this step is configured to pull the knitting yarn by rotating a pair of rollers with gears and rotating with the driving force of the motor 15.

stabilization step;

In the surface hardening step, the surface is melted, and the bag knitting yarn towed in the pulling step is cooled by pulling it taut at a certain tension, and then pressing the surface to stabilize the annual deformation in the surface hardening step, thereby preventing deformation and maintaining the original shape. Hold me to do it.

This step is also one of the very important steps in carrying out the present invention. If the bag knitting yarn whose surface is melted by heat while passing through the processing nozzle 20 does not go through this process, it will be twisted like ramen due to heat deformation due to melting. It becomes a state.

Therefore, the processed bag knitting yarn can fulfill its role as a knitting yarn only if the melted surface is cooled and the tissue is stabilized by holding it.

Box storage step;

In the stabilization step, buy stabilized bag knitting yarn to prevent deformation and place it in a box.

At this time, you can ignore this step and immediately carry out the commercialization step of winding it into a ball-shaped bundle. However, it is better to store the bag knitting yarn that has not yet been completely stabilized in a box to secure sufficient stabilization time and then wind it again into a ball-shaped bundle. In the present inventor's experience, this was the best way to improve work efficiency and reduce defect rates.

commercialization stage;

The bag knitting yarn stored in the box is wrapped and wrapped into a convenient ball-shaped bundle.

By carrying out the bag knitting yarn processing method using the bag knitting yarn processing device described above, synthetic fiber yarns for knitting made of polyester, nylon, or polypropylene and made of braided yarn, twisted yarn, or tube yarn are surface hardened by heat treatment, The rum, of course, melts on the surface to obtain a bag knitting yarn with a smooth reflective surface.

The present invention will have great utility value in the knitting industry by supplying customized knitting yarn needed for knitting bags and small items to the recently active knitting industry.

10: Table 15: Motor
20: processing nozzle 21: processing passage 22: guide part
25: heater 26: housing 27: heating chamber
28: insulation layer 29: safety cover
30: Holder 35: Bobbin
40: Winder 50: Annealing roller

Claims (4)

A knitting yarn construction step of knitting synthetic fiber yarn made of ply, twisted yarn, and tube yarn using polyester, nylon, and polypropylene;
A surface hardening step of surface hardening the knitting yarn made of synthetic fiber yarn constructed in the knitting yarn construction step by passing it through a heated, high-temperature processing nozzle (20);
A pulling step of pulling the bag knitting yarn surface-hardened in the surface hardening step at a constant speed;
A stabilization step in which the bag knitting yarn pulled in the pulling step is pulled taut and cooled, and at the same time, the surface is pressed and stabilized to prevent deformation and maintain its original shape;
A box storage step of purchasing the stabilized bag knitting yarn so that it does not deform in the stabilization step and putting it in a box;
A method of processing bag knitting yarn, characterized in that it consists of a commercialization step of winding the bag knitting yarn stored in a box into a convenient ball-shaped bundle. According to paragraph 1,
In the surface hardening step, the processing nozzle (20) maintains a temperature of 310 to 350 ° C. and the speed of the yarn passing through the processing nozzle (20) is 6 m to 16 m / min. A bag knitting yarn processing method. The processing nozzle 20 including the heater 25 is set on the table 10 equipped with the motor 15, and a stand 30 for supplying knitting yarn is provided in front of the processing nozzle 20, and at the rear of the processing nozzle. There is a winder 40 that is driven by a motor 15 and pulls the knitting yarn, and in conjunction with the winder 40, pulls the bag knitting yarn pulled from the winder 40 taut, cools it, and presses the surface to stabilize it. A bag knitting yarn processing device characterized by consisting of an annealing roller (50). It is characterized by surface hardening by heat treatment of synthetic fiber yarns for knitting made of polyester, nylon, and polypropylene and made of braided, twisted, and tube yarns, so that the surface melts as well as distorts to form a smooth reflective surface. Bag knitting yarn.