KR-102961892-B1 - Manufacturing method of double-sided fabric with burn-out and coloring at the same time

Abstract

The present invention provides a method for manufacturing a double-sided fabric that simultaneously performs burnout and coloring, wherein one side formed with pile yarns made of polyester fibers is entirely printed with a color dye, and the opposite side made of spandex/nylon fibers is simultaneously burned out and colored using a burnout composition containing a burnout component and a dye, thereby imparting high-quality three-dimensional patterns and various colors through a simple process to enhance visual aesthetic appeal.

Inventors

• 신동화
• 엄상길

Assignees

• 주식회사 프렌드 텍스타일

Dates

Publication Date

20260508

Application Date

20230512

Claims (4)

1. A step of preparing a base fabric comprising 67% by weight of polyester fiber yarn, 24% by weight of nylon fiber yarn, and 9% by weight of spandex, and including a first surface in a napped form formed of pile yarn made of polyester fiber yarn with a pile height of 0.1 to 5.0 mm, and a second surface in a plate form formed of white yarn made of spandex and nylon fiber yarn; A step of cutting the polyester fiber yarn of the first side to a certain height; A step of coloring the entire first surface using a dye by a printing method, and then dry heat treating at a temperature of 190°C, which is higher than the heat treatment temperature of the second surface, to cure the dye colored on the polyester fiber yarn and fix it to the pile yarn; and The method comprises the step of: performing a burnout treatment on the second surface using a roller printing method with a roller having a carving depth of 0.23 to 0.27 mm, wherein only specific parts of the white yarn are chemically removed and the remaining nylon parts that are not removed form a three-dimensional pattern while simultaneously coloring the remaining parts that are not removed; and then performing a wet heat treatment at 105 to 120°C using a steam aligner so as not to damage the spandex. For the first coloring step, a dye is used that chemically reacts only with polyester fibers and does not color white yarns. The first burnout composition comprises 45 to 55 weight% caustic soda, 2 to 3 weight% thickener, 0.5 to 1.5 weight% urea, and the remainder being water, and The first burnout composition is prepared by leaving it to age for at least 24 hours, and By adjusting the depth of the roller pieces used in the above roller printing method, the depth of the pattern changes, and After wet heat-treating the above second surface, A first brush washing step of removing loose fibers from collar-burnout fabric using at least one pair of roller brushes; A second mangle washing step to remove loose fibers from color-burnout fabric using a mangle device; A method for manufacturing a double-sided fabric that performs burnout and coloring simultaneously, characterized by further performing a washing step in which a first wash is performed in three first cold baths with water at 70°C without neutral detergent, followed by a second wash in three hot baths with water at 80°C containing neutral detergent including hydrosulfide or caustic soda, followed by rinsing in three second cold baths with water at 85°C without neutral detergent.
2. In Article 1, A method for manufacturing a double-sided fabric that performs burnout and coloring simultaneously, characterized by using two or more rollers to sequentially perform burnout and coloring operations when two or more colors are to be formed on the second side.
3. delete
4. delete

Description

Manufacturing method of double-sided fabric with burn-out and coloring at the same time The present invention relates to a method for manufacturing a double-sided fabric that performs burnout and coloring simultaneously. More specifically, the invention relates to a method for manufacturing a double-sided fabric that performs burnout and coloring simultaneously, wherein one side formed with pile yarns made of polyester fibers is entirely printed with a color dye, and the opposite side made of spandex/nylon fibers is simultaneously burned out and colored using a burnout composition containing burnout components and dyes, thereby imparting high-quality three-dimensional patterns and various colors through a simple process to enhance visual aesthetic appeal. The recent trend in the clothing industry is to prioritize external and sensory aspects, such as design, color, and touch, as a means of expressing individual personality and character, rather than the strength, durability (fastness), and functional/physical properties of the product required for the final use. For the reasons mentioned above, consumer purchasing sentiment regarding color and design in textile products is changing, and there is a growing desire among consumers to purchase clothing in bright, vibrant fluorescent colors. Dyeing and burnout are methods for forming patterns on fabrics made of these fibers. Burnout is a processing method in which a woven fabric is produced using two types of fiber yarns with chemically different properties, and a portion of one fiber yarn is chemically removed from the woven fabric to form a three-dimensional pattern using the remaining fiber yarn. In addition, dyeing to form color on the fabric has limitations in design because the design or pattern is monotonous and flat in a one-dimensional manner. As a solution to this, the burnout method, which involves treating the surface of the fabric with chemicals to create a three-dimensional pattern effect, is mainly used, and additional dyeing is performed if necessary after burnout. In order to create a colorful pattern by applying a dyeing process to the pattern formed by the burnout process as described above, the conventional burnout dyeing method involves creating a dyeing plate that matches the pattern formed by the burnout process and using the dyeing plate to dye the burnout area. Conventional burnout products are produced by undergoing a two-stage process until the woven fabric is finished. This process involves placing the fabric in clean water, washing it with water, and ironing it to remove impurities remaining on the fabric, followed by partial dyeing and burnout at a dyeing factory. However, since dyeing and burnout are carried out in two stages at different factories, problems such as increased unit costs and delivery delays due to increased processing time occur. In addition, performing burnout and then re-dyeing the fabric has the problem of increasing costs due to the many processes involved, and also has the problem of reduced aesthetic appeal due to the lack of color variety as the base texture and three-dimensional pattern are expressed using only two colors. Figures 1 and 2 are photographs showing the upper and lower surfaces, respectively, of a fabric that has undergone burnout and dyeing simultaneously using a conventional method. FIG. 3 is a flowchart showing the manufacturing process of a double-sided fabric according to one embodiment of the present invention in sequence. FIGS. 4 and FIGS. 5 are photographs showing the first and second sides, respectively, of a double-sided fabric manufactured according to an embodiment of the present invention. FIGS. 6 and FIGS. 7 are photographs showing the first and second sides, respectively, of another double-sided fabric manufactured according to one embodiment of the present invention. Hereinafter, preferred embodiments of the present invention will be described with reference to the attached drawings. However, embodiments of the present invention may be modified in various different forms, and the scope of the present invention is not limited to the embodiments described below. In addition, throughout the specification, the term 'includes' a component means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. Hereinafter, a method for manufacturing a double-sided fabric according to one embodiment of the present invention will be described. First, a base fabric is prepared (S10). The base fabric is woven using pile yarn and white yarn by a known method to include a first surface in a napped form having multiple piles and a second surface in a flat plate form. Hereinafter, for convenience of explanation, the first surface made of pile yarn is referred to as the upper surface and the second surface made of white yarn is referred to as the lower surface, but the present invention is not limited thereto. The base fabric may preferably