KR20190071036A - Method for making of the uppers of leather for Footwear using Delta structured wool spinning technology - Google Patents

Abstract

The present invention relates to a manufacturing method of shoes using a delta structure spun yarn, and more specifically, a manufacturing method of delta structure spun yarn comprises steps of: winding filament yarns to a filament bobbin; manufacturing wool through a roving process as a roving; putting filament yarns wound to the filament bobbin to a creel of a spinning device to be supplied through a filament guide and a V-roller; and stretching the roving yarns in a step of S2 by hanging the same in the spinning device by 20-22 times of magnification, and supplying two threads of the roving yarns and the filament yarn with a gap different from each other for spinning. Through the manufacturing method of delta structure spun yarns, yarns are manufactured, and an upper is manufactured through a knitting step. A fabric manufactured by the method of the present invention has a stabilized structure to increase strengths and abrasion resistance and have excellent moisture absorbing and quick drying function and heating function.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method for manufacturing a shoe upper fabric using a delta structure spinning technique,

The present invention relates to a method of manufacturing shoe using a delta structure spinning technique.

The sneakers are divided into upper part, upper part, and lower part, which can be divided into approximately 30 parts, and the main part can be composed of 9 parts .

In the nine major areas of the shoe, the upper part of the body, in particular, surrounds the foot and fixes the foot in the shoe. The materials used are natural leather, artificial leather, and various kinds of fibers. The selection and design of materials are considered to be very important factors to maximize the feeling of touching the feet, the discharge of sweat, the ventilation, the light weight and the durability.

Textile materials in shoes are mainly used as upper, and performance required in upper materials requires functional performance such as protection, ventilation, waterproofness, and aesthetic performance such as style, design and color.

In addition, the shoe upper material is composed of a sheath material for imparting friction resistance, durability, and aesthetics, an inner layer material for improving wearability and adhesion, and an intermediate layer for cushioning and imparting functionality. Although the material used to manufacture the upper used in shoes has been used by using leather, artificial leather, and synthetic fibers (Korean Patent Laid-Open Publication No. 2017-0057601), in recent years, It is a tendency to prefer upper fabric of knitted structure using fiber.

In recent years, the use of textile materials has been increasing in the market, but most of them are supplied as knitted fabrics with general filament fibers. Spinning yarns have good comfort but they have limitations on the physical properties.

Accordingly, there has been a need to develop a material for shoe upper using a functional yarn having improved strength and abrasion resistance.

The present invention has been extensively studied in order to develop a method of manufacturing a shoe using a new delta structure spinning technique which overcomes the limitations of the prior art. As a result, it has been found that the shoe has excellent strength, abrasion resistance, anti-pilling property, sweat- A delta (Δ) in which the yarn uniformity is less than 16 U%, the breaking strength is 1,000 kPa or more, the peeling grade 4 or more, the discoloration grade 4 or more, and the air permeability is 0.5 cm 3 / The present invention has been accomplished by developing a yarn and an upper material of the structure.

Accordingly, the present invention provides a method for producing a delta-structured yarn comprising the steps of:

Winding a filament yarn on a filament bobbin (S1);

(S2) preparing and preparing the wool through a cooking process;

Inserting the filament yarn wound on the filament bobbin into a creel of the filament and preparing it to be fed through the filament guide and the V-roller; And

(S4) of irradiating the filament yarn while irradiating the filament yarn at a magnification of 20 to 22 times by irradiating the filament yarn with the filament yarns at different intervals.

In one embodiment of the present invention, when blending in step S4, the wool fibers are contained in an amount of 50 to 80% based on the total weight of the fabric.

In another embodiment of the present invention, the filament yarn is at least one material selected from the group consisting of polyethylene terephthalate, polyester, and nylon.

Further, the present invention provides a method of fabricating a yarn, comprising knitting a sheath using a double lacquer machine;

Knitting the yarn end yarn using a double lacquer machine; And

A step of dying the outer skin and the inner skin, and then fabricating the upper by using an adhesive to prepare an upper of the shoe upper.

The delta-structured yarn produced by the method of the present invention has excellent breathability and hygroscopicity, and is excellent in wearability and adhesion to the body, and can exhibit the same antifouling properties, water repellency, frictional resistance and durability as synthetic fiber materials It can be applied to various shoes products and applications such as sports shoes, leisure shoes and walking shoes of high-grade shoes.

1 is a diagram illustrating a method of manufacturing a delta-structured yarn according to the present invention.
FIG. 2 is a view showing a double lacquer knitted dye product prepared in the present invention.

The present invention has been made to overcome the limitations of the conventional upper fabrication method and to develop a new method of manufacturing upper fabric for footwear. As a result, when the delta structure spinning technique is used, the structure of the yarn is stabilized compared to the conventional spinning yarn, The quick drying function and the warming function are demonstrated, and it is confirmed that the material suitable for the shoe upper fabric is produced, thus completing the present invention.

The present invention relates to a shoe upper material having excellent strength, abrasion resistance, anti-pilling property, sweat-absorbing quick-drying property and shape stability and little warpage required for shoe and has a yarn uniformity of 16 U% or less, a burst strength of 1,000 kPa or more, , A fading grade 4 or higher, and an air permeability of 0.5 cm 3 / cm 2 / sec or more.

That is, the main object of the present invention is to provide a method for producing a delta-structured yarn comprising the following steps:

Winding a filament yarn on a filament bobbin (S1);

(S2) preparing and preparing the wool through a cooking process;

Inserting the filament yarn wound on the filament bobbin into a creel of the filament and preparing it to be fed through the filament guide and the V-roller; And

(S4) of irradiating the filament yarn while irradiating the filament yarn at a magnification of 20 to 22 times by irradiating the filament yarn with the filament yarns at different intervals.

In one embodiment of the present invention, the wool (wool fiber) is contained in an amount of 50 to 80% based on the total weight of the fabric when spinning in the step S4.

In another embodiment of the present invention, the filament yarn is at least one material selected from the group consisting of polyethylene terephthalate, polyester, and nylon.

The present invention also relates to a method of knitting a yarn using a double lacquer machine,

Knitting the yarn end yarn using a double lacquer machine; And

A step of dying the outer skin and the inner skin, and then fabricating the upper by using an adhesive to prepare an upper of the shoe upper.

The term "upper" used in the present invention refers to a portion of a shoe which speaks a portion other than a window and a shoelace, and the portion covers the foot and fixes the foot in the shoe. It is made of various kinds of fibers and the material is selected and designed to maximize the feeling touching the foot, the discharge of sweat, the ventilation, the light weight, and the durability.

Hereinafter, preferred embodiments of the present invention will be described in order to facilitate understanding of the present invention. However, the following examples are provided only for the purpose of easier understanding of the present invention, and the present invention is not limited by the following examples.

[Example]

Example 1. Preparation of delta-structured yarns

In Example 1, a delta-structured yarn was produced.

(1) Yarn

To fabricate the yarn of delta structure, it was manufactured by roving, square and square process. First, the filament yarn was wound on the filament bobbin, and the wool was made into the roving after re-combing and drawing. Two filament yarns were placed on the creel so that one filament yarn could be fed to one spindle and then fed through filament guides and V-rollers. Rubbing was carried out in the spinning machine, followed by stretching at a magnification of 20 to 22 times, while the central roving and two filament yarns were fed to the front part at different intervals to produce a delta structure yarn to be manufactured. The overall manufacturing process is shown in Fig.

The delta-structured spun yarn was removed through the winder while removing the defective part of the yarn, and the waxing treatment was performed to reduce friction during knitting.

(2) Knitting

The double raschel uses two needle bars to create the biceps by means of 6-7 guide bars or jacquard devices. Therefore, unlike conventional knitted fabrics, it has two front and back sides with different structures, and a pile layer supporting both sides and two sides (Fig. 2).

The delta structure wool yarn prepared by the yarn preparation process and knitting yarn such as PES and NY, rayon, polynosic yarn, aramid yarn or filament yarn are put into a 5-7 bar double lacquer machine. Normally 1-3 bar is front, 4 bar is pile and 5-7 bar is knit on the back side. Depending on the organization and the required performance, the yarn input may be either delta wool yarn alone or PES, NY, rayon , Polynosic yarn, aramid yarn or filament yarn are mixed and introduced. It is also possible to apply spandex when high elasticity is required.

Pile uses PES or NY mono filament to enhance cushioning and durability. The thickness of the yarn used for pile formation is adjusted according to the desired thickness and cushion feeling. Normally thick yarns are good for supporting cushioning and durability, but it affects touch feeling and should be adjusted at an appropriate level.

The front and back sides of the fabric can be knitted differently depending on requirements such as breathability, hygroscopicity, and water repellency. For example, when breathability is required with excellent hygroscopicity, sweat is absorbed by knitting a plain structure with a large hole size on the front side and delta yarns on the back side, and drying is caused by the breathable tissue on the front side . In order to make the fabric that maximizes ventilation for summer, the mesh structure using the delta yarn on the back side is designed so that the sweat can be dried immediately and antimicrobial effect by the delta wool yarn can be expected. For shoe such as shoe that requires water repellency, the high density fabric on the front side is knitted with a delta wool yarn including aramid to increase the strength with water repellency, and the pile improves the shock absorption performance by using mono yarn of 50D or more. On the back side, the mesh structure using the delta wool yarn is put in order to adjust the water-repellent condition together with the breathability.

To create a melange-like color effect, you can use yarns such as PES, NY, rayon, and polynosic with the delta wool yarn on the front and back sides. Delta wool yarn on the front, general PES or NY on the back, and color effect due to difference in dyeability can be obtained by 1 bath dyeing. Part of the bar for front or back cotton knitting is delta wool yarn and general PES, NY , Rayon, polynosic, and the like, so that the color effect in the same plane can be expressed.

(3) Fabric dyeing and finishing

In order to secure the physical properties such as colourfastness, high fastness, antifouling property, water repellency and peelability of the fabric knitted fabric prepared above, a three-step process such as pretreatment, dyeing and processing was performed. In order to prevent scouring and uneven smudging of the above knitted fabric, the pretreatment is ensured in accordance with a suitable structure and ratio of a composite material such as SW (Super Wool) and Polyester Nylon. In order to obtain the optimal dyeing conditions, anion - based antimicrobial agents, flame retardants, and mangoes were selected for optimization. In order to prevent dyeing and processing conditions and to prevent defects and unevenness of the double lacquer fabrics according to the tissues, 2% of 20% solution and 1.5% of glacial acetic acid 20% solution were initially injected to prevent defects and unevenness.

Dyeing temperature control and pH optimum control for dye adsorption on two kinds of fibers (wool and nylon, etc.) in order to increase the leveling and dye adsorption according to the optimum conditions for dyeing temperature and time (rise, Respectively. In order to achieve the same color fastness and high fastness, the selection of the optimum dye and the fastness of each type according to the material / organization, ensuring the applicability of metal type and milling type acid dye and high fastness through fixing agent post treatment. By using the milling type acid dyestuff, the same color can be achieved by reducing the color property of the two kinds of color property (WOOL, synthetic fiber) by ensuring color difference of 1.0 or less. And it is possible to secure a fastness of not less than grade 3 through general acid dyes considering economical efficiency.

In order to satisfy both antifouling property and water repellent performance simultaneously, the antifouling and water repellent performance of the fluoric system C6 series was selected as the processing agent, and the antifouling water repellent agent was passed through the mix through the optimization formulation. In the next step, the pickling rate was controlled to maintain 70 ~ 80% and the drying temperature (around 150 ℃) and the time (within 2 minutes) of the tenter were maintained. When these processes are satisfied, the processing performance of water-repellent and antifouling properties of grade 4 or higher can be ensured.

In order to maintain the high elasticity of the knitted fabric, the pin for fastening the fabric to the fabric tends to maintain the tensile elongation by using a clip, and the elasticity of the upper fabric is further improved, thereby realizing a feeling of grip which gives a comfortable feeling.

(4) Production of upper (30)

The fabric of the endothelium and the outer skin prepared above was prepared by using an adhesive to prepare the upper 30.

Experimental Example 1. Confirmation of physical properties of yarn

In order to compare the uniformity, strength, and elongation of the yarn of the delta structure, general yarn yarn and yarn filament yarn were tested for the corresponding yarn number (3 times)

division Delta yarn Plain yarn Sirofil yarn Mixed rate SW / N 6733 SW / N 7030 SW / N 8911 Number (notation) Nm F / 100 Nm 1/48 Nm F / 50 Lot No. 17W-G026-W 08W-R189-W 15W-K032-W Actual number (Nm) 49.20 47.70 49.51 Uniformity (U%) 11.16 13.85 13.66 Strong (g) 355.0 213.9 212.4 Shinto (%) 18.4 27.1 25.9

As shown in Table 1, the delta yarns of the present invention were found to have superior homogeneity, strength, and elongation as compared with general spinning yarns and siro filel yarns.

Experimental Example 2 Confirmation of color matching

In order to match the color of the dyed color (the same color color of two or more kinds of fiber materials) using the fabric of the delta structure using the fabric of Table 2 according to the standard of Table 2, . The dye was tested for the O.W.F content and the dye type of the disperse dye and the acid dye, and as a result, it was confirmed that excellent color matching color could be obtained as shown in Table 3 (three runs).

BAR Yarn rack length
(mm) tolerance weight
(g / yd) Horn ratio
(%) Headquarters / Beam group Arrangement L1 Delta spinning, F / 60 1,970 ± 50 107.89 14.41 230 10,23 1IN 1OUT L2 Delta spinning, F / 60 1,970 ± 50 107.89 14.41 230 23,10 1IN 1OUT L3 PET 150/48 DTY R / W 8,500 ± 50 154.84 20.68 153 - 2IN 4OUT L4 PET 150/48
DTY R / W 8,500 ± 50 154.84 20.68 153 - 2IN 4OUT L5 Delta spinning, F / 60 2,040 ± 50 111.73 14.92 230 10,23 1IN 1OUT L6 Delta spinning, F / 60 2,040 ± 50 111.73 14.92 230 23,10 1IN 1OUT L7 ± 50 0.00 0.00 system 748.93 100.00

dyes Dye amount  unit : O.W.F 1-1 2-1 3-1 Dispersion
dyes Dianix Yellow ACE 0.23 0.23 0.21 Dianix Red ACE 0.114 0.114 0.095 DianixBlueACE 0.166 0.166 0.15 acid
dyes Optilan G / Yellow MF-RL 0.063 0.054 0.071 Nlylosen Red N-2RBL 0.0124 0.01 0.014 Nlylosan Blue N-BLN 0.15 0.134 0.17 Picture

dyes Dye quantity unit: O.W.F 1-2 2-2 3-2 Dispersion
dyes Dianix Yellow ACE 0.23 0.22 0.22 Dianix Red ACE 0.095 0.09 0.074 DianixBlueACE 0.15 0.16 0.16 acid
dyes Optilan G / Yellow MF-RL 0.059 0.024 0.026 Optilan Red MF-GRIN 0.0346 0.01 0.011 Optilan Blue MF-GL 0.139 0.042 0.04 Picture

Experimental Example 3. Confirmation of antifouling property and water repellency

In the above, the antifouling property and the water repellency of the fabric were processed by using a fabric knitted according to the specifications of A, B, C and D using a delta-structured yarn. PICK UP ratio (%) was measured according to the knitting samples A, B, C, D and the fabrication manufacturer 1,2,3,4 during processing. Knitted samples A and B were general knitted fabrics, C and D were delta yarn . The differences in antifouling performance and water repellency performance were compared according to manufacturers 1,2,3,4. According to the comparison, it can be confirmed that the C and D samples are superior in antifouling property and water-repellency to other samples (three times).

division One 2 3 4 PICK UP Rate A 94.8% 87.4% 101.2% 98.1% B 79.1% 79.6% 81.7% 80.9% C 71.5% 73.6% 78.8% 80.4% D 136.3% 139.9% 104.5% 94.8% Antifouling A 4th grade 4th grade 1-2 class 1-2 class B 3-4 3-4 1-2 class 1-2 class C 4th grade 4th grade 2nd grade 2nd grade D 4th grade 4th grade 2nd grade 2nd grade Water repellency A 1-2 class 1st grade 1st grade 1st grade B 1st grade 1st grade 1st grade 1-2 class C 2-3 class 4th grade 3-4 4th grade D 1-2 class 2-3 class 3-4 3-4

※ ① Antifouling (grade): KS K 0610: 2011 Oil decontamination method

Grade: 5th grade (excellent), 4th grade (excellent), 3th grade (normal), 2nd grade (little insufficient), 1st grade (insufficient)

② Water repellency (grade): KS K 0590: 2013 Spray method

Classification marks: Class (100), Class (90), Class (80), Class (70), Class (50)

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention. Therefore, it is to be understood that the embodiments disclosed herein are not intended to limit the scope of the present invention but to limit the scope of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (4)

A method of making a delta-structured yarn comprising the steps of:
Winding a filament yarn on a filament bobbin (S1);
(S2) preparing and preparing the wool through a cooking process;
Inserting the filament yarn wound on the filament bobbin into a creel of the filament and preparing it to be fed through the filament guide and the V-roller; And
(S4) of irradiating the filament yarn while irradiating the filament yarn at a magnification of 20 to 22 times by irradiating the filament yarn with the filament yarns at different intervals.
The method according to claim 1,
Wherein the wool fibers are contained in an amount of 50 to 80% based on the total weight of the fabric when spinning in the step S4.
The method according to claim 1,
Wherein the filament yarn is at least one material selected from the group consisting of polyethylene terephthalate, polyester, and nylon.
Knitting the yarn of claim 1 using a double lacquer machine;
Knitting an endothelium of claim 1 using a double lathery machine; And
And dyeing the outer skin and the inner skin, and then fabricating the upper by using an adhesive to produce an upper.

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