Bark pattern velvet fabric and preparation method thereof

Abstract

The present invention discloses a bark-patterned velvet fabric and a preparation method thereof, belonging to the field of textile technology. The present invention obtains a bark-style velvet fabric by, after finishing and gluing the fabric, beating it with air washing equipment and high-temperature shaping to maintain the fuzz upright. The method comprises drying and shaping the dyed fabric, gluing it, and then performing an air washing process to obtain the bark-patterned velvet fabric. The air washing process is performed at a temperature of 150-170°C. The fabric has good consolidation fastness, solves the problems of bottom fuzzing and fuzz shedding, and has a fluffy and soft feel, a good three-dimensional effect of the fuzz, good fuzz uprightness, and fine fuzz granularity.

Description

Technical Field

[0001] The invention relates to a velvet fabric with a bark pattern and a preparation method thereof, belonging to the technical field of textiles. Background Art

[0002] With the development of social economy and the continuous improvement of people's living standards, the pursuit of sofa fabrics not only requires its comfort, but also its functionality, aesthetics and unique style. In order to meet the needs of consumers, the continuous development of new fabrics has become an important task of the textile industry.

[0003] Cut velvet is woven on a double rapier loom, with the center velvet cut to create a flat velvet fabric. Made with viscose yarn and filament yarn as the warp, this fabric has a unique style and is highly sought after. However, the velvet surface of this fabric is prone to ruffled pile and creases, which can affect the product's aesthetics and practicality. Summary of the Invention

[0004] In order to solve the existing problems, the present invention uses air washing equipment to beat and high-temperature shape the fabric after post-finishing and gluing to keep the fluff upright. At the same time, based on the color differences of two or more raw materials, a bark-style velvet fabric is obtained. The fabric has good consolidation fastness, solves the problems of bottom fuzzing and velvet shedding, feels fluffy and soft, has a good three-dimensional effect of the fluff, good fluff uprightness, and good fluff granularity.

[0005] The first object of the present invention is to provide a method for preparing bark pattern velvet fabric, wherein the method comprises the following steps: drying and shaping the dyed fabric, applying glue, and then performing air washing to obtain the bark pattern velvet fabric; the air washing treatment temperature is: 150-170°C.

[0006] In one embodiment of the present invention, the production process steps include: dyeing of grey cloth - adding softener and antistatic treatment - dehydration - drying and shaping - gluing - air washing - product shearing - finished product.

[0007] In one embodiment of the present invention, during the drying and shaping process, a carbon brush or a palm brush is used for brushing.

[0008] In one embodiment of the present invention, the carbon brush bristles are brushed lightly with a brown brush to straighten the hairs, avoiding heavy brushing that may cause the yarn to break. The brown brush bristles are fine and dense, with an angle of 60-70 degrees between the fabric and the brown brush, and a rotation speed of 30-36 m / min.

[0009] In one embodiment of the present invention, the gluing is to use environmentally friendly ecological glue to treat the bottom coating of the dyed and dried fabric, and to increase the fluff consolidation by gluing.

[0010] In one embodiment of the present invention, the gluing conditions are: set to 155-158 degrees (1-8 sections), set the temperature, upper blowing 40-50 / down blowing 30-40 (1-4 sections), exhaust #75%, 2#100%; the A-type frame behind the machine drops the cloth, and the cloth has no wrinkles, no slant folds, and no wrinkle marks.

[0011] In one embodiment of the present invention, the air-washing process involves applying adhesive to the fabric, padding it with an additive, and then passing it through an air-washing machine. After beating and high-temperature setting, the pile is restored and maintained upright. Applying adhesive before air-washing improves bond strength, eliminates fuzzing on the bottom and shedding on the pile surface, and creates a fluffy, soft feel with a three-dimensional pile effect. High air-washing temperatures and short beating times result in improved pile uprightness and finer pile granularity. Low temperatures and long beating times result in noticeable pile collapse and poor granularity.

[0012] In one embodiment of the present invention, the auxiliary agent includes 4-6 g / L of antistatic agent LM and 1.5-2.5 g / L of self-prepared softener.

[0013] In one embodiment of the present invention, the air washing treatment conditions are: set temperature 150-170°C, width 143-145cm; air volume 25-35, exhaust 5-15; front weight 9-11; rear weight 5-7, cycle time 3.5 seconds / cycle; vehicle speed 5-10 meters / minute.

[0014] In one embodiment of the present invention, finished product shearing is performed: after air washing, the fabric pile surface undergoes shearing, and the shear gauge is controlled to ensure pile length consistency. The machine speed is 6-7 m / min, with the finished product being free of loose hair and with the pile surface being consistent on the left, center, and right sides. The top air flow is 40° / down air flow is 30° (1-4 steps), with exhaust air #75% and #2 100%. The fabric is dropped onto an A-frame at the rear of the machine, ensuring no shear damage, padding, or bright spots.

[0015] In one embodiment of the present invention, the finished product is inspected to be curled and have a raised pile effect.

[0016] The second object of the present invention is to provide a bark pattern velvet fabric prepared according to the above method.

[0017] The third object of the present invention is a textile comprising the above-mentioned bark pattern velvet fabric.

[0018] Beneficial effects of the present invention:

[0019] After the fabric is finished and glued, it is beaten with air washing equipment and then shaped at high temperature to keep the pile upright. At the same time, the color differences between two or more raw materials are used to produce a bark-style velvet fabric. This fabric has good bonding fastness, solves the problems of bottom fuzzing and pile shedding, and has a fluffy and soft feel, a good three-dimensional pile effect, good pile uprightness, and fine pile granularity. DETAILED DESCRIPTION

[0020] The following describes preferred embodiments of the present invention. It should be understood that the embodiments are for better explanation of the present invention and are not intended to limit the present invention.

[0021] Example 1: A velvet fabric with polyester filament / viscose yarn as the velvet surface

[0022] The production process of bark pattern velvet fabric includes: grey fabric inspection - grey fabric shaping - sewing the edge of the fabric - high temperature cylinder overflow rope dyeing - normal temperature sand washing with softener and antistatic treatment - dehydration + stacking - drying and shaping - (brush the velvet surface with a carbon brush during drying and loading) - gluing - air washing - product shearing - finished product inspection - finished product rolling and storage.

[0023] 1. Carbon Brush: Use a brush to lightly brush the hairs to straighten them out. Avoid heavy brushing, which can break the yarn twist. The brush should be fine and dense, with a 70° angle between the fabric and the brush, and a speed of 30 m / min.

[0024] 2. Gluing: After dyeing and drying, the fabric is treated with environmentally friendly ecological glue and the bottom is coated to increase the fluff consolidation degree by gluing; set the temperature to 158℃ (1-8 sections), set the upper air flow to 40℃ / lower air flow to 30℃ (1-4 sections), exhaust air #75%, 2#100%; the fabric is dropped on the A-type frame at the rear of the machine, and there are no wrinkles, folds or wrinkle marks on the left and right sides;

[0025] 3. Air Wash: Glue and dry first, then air wash. This ensures better bond strength, prevents fuzzing on the bottom and shedding on the suede, and creates a fluffy, soft feel with a well-defined, three-dimensional pile. High air washing temperatures and short beating times ensure the pile remains upright and has fine grain. Low temperatures and long beating times result in noticeable pile collapse and poor grain. After being padded with additives, the fabric enters the air wash, where beating and high-temperature setting restore the pile and maintain its upright shape. Additives: 6g / L antistatic agent LM, 2g / L custom softener. Set the temperature to 170°C; air volume 35°C, exhaust 12°C; front weight 11°C; rear weight 7°C; cycle time 3.5 seconds / cycle; speed 5 m / min.

[0026] 4. Finished Product Shearing: After air washing, the fabric's suede surface undergoes shearing. Shearing is performed by controlling the shear gauge to ensure consistent suede length. The machine runs at 6 m / min, ensuring the finished product is free of loose hair and has a consistent suede surface on the left, center, and right sides. Upward airflow is 40°C / downward airflow is 30°C (sections 1-4), with exhaust at #75% and #2 at 100%. The fabric is dropped onto an A-frame at the rear of the machine, ensuring no shearing damage, linting, or bright spots.

[0027] 5. Inspection of finished products: the wool is curled and the pile effect is achieved.

[0028] Example 2: A velvet fabric with viscose filament / viscose yarn as the velvet surface

[0029] 1. Carbon Brush: Use a brush to lightly brush the hairs to straighten them out. Avoid heavy brushing, which can break the yarn twist. The brush should be fine and dense, with a 60° angle between the fabric and the brush, and a speed of 36 m / min.

[0030] 2. Gluing: After dyeing and drying, the fabric is treated with environmentally friendly ecological glue and the bottom is coated to increase the fluff consolidation degree by gluing; set the temperature to 155℃ (1-8 sections), set the upper air flow to 40℃ / lower air flow to 30℃ (1-4 sections), exhaust air #75%, 2#100%; the fabric is dropped on the A-type frame at the rear of the machine, and there are no wrinkles, folds or wrinkle marks on the left and right sides;

[0031] 3. Air Wash: Glue and dry first, then air wash. This ensures better bond strength, prevents fuzzing on the bottom and shedding on the suede, and creates a fluffy, soft feel with a well-defined, three-dimensional pile. High air washing temperatures and short beating times ensure the pile remains upright and has fine grain. Low temperatures and long beating times result in noticeable pile collapse and poor grain. After being padded with additives, the fabric enters the air wash, where beating and high-temperature setting restore the pile and maintain its upright shape. Additives: 4g / L antistatic agent LM, 1.5g / L custom softener. Set the temperature to 150°C, width to 145cm; air volume to 25°C, exhaust to 5°C; front weight to 9°C, rear weight to 5°C, cycle time to 3.5 seconds per cycle, and speed to 10 m / min.

[0032] 4. Finished Product Shearing: After air washing, the fabric's suede surface undergoes shearing. Shearing is performed by controlling the shear gauge to ensure consistent suede length. The machine runs at a speed of 7 m / min, ensuring the finished product is free of loose hair and has a consistent suede surface on the left, center, and right sides. The air flow is adjusted from top to bottom at 40°C / downward at 30°C (sections 1-4), with exhaust at #75% and #2 at 100%. The fabric is dropped onto an A-frame at the rear of the machine, ensuring no shearing damage, linting, or bright spots.

[0033] 5. Inspection of finished products: the wool is curled and the pile effect is achieved.

[0034] Comparative Example 1:

[0035] The bark pattern velvet fabric was prepared by referring to the method of Example 1, except that the order of air washing and shaping was adjusted, and air washing was performed first and then shaping. The results showed that after the order was adjusted, the bottom of the velvet was not glued and consolidated, which would cause the bottom to become fuzzy and the velvet to fall off.

[0036] Comparative Example 2:

[0037] Bark pattern velvet fabric was prepared according to the method of Example 1, except that the air washing temperature was adjusted to 60°C, 100°C, 150°C, 160°C, and 200°C. Other conditions were the same as in Example 1. The results showed that if the air washing temperature was too low, the velvet would not stand upright, and the velvet would be obviously tilted and straight. If the air washing temperature was too high, the velvet fabric would have color difference and significant strength loss. Therefore, the air washing temperature was preferably 150-170°C.

[0038] Although the present invention has been disclosed above in terms of preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the definition of the claims.

Claims

1. A method for preparing bark pattern velvet fabric, characterized in that: The method comprises the following steps: dyeing a velvet fabric with a velvet surface of polyester filament / viscose yarn, drying and shaping it, applying glue, and then performing air washing to obtain a velvet fabric with a bark pattern; During the drying and shaping process, use a brush to lightly brush the fluff to straighten it out; the angle between the fabric and the brush should be 60-70 degrees, and the speed should be 30-36 m / min; Gluing is to use environmentally friendly ecological glue to treat the bottom of the dyed and dried fabric, and increase the fluff consolidation through gluing; the gluing conditions are: 155-158℃ for sections 1-8, 40-50℃ for upper air flow and 30-40℃ for lower air flow in sections 1-4, 75% for exhaust air 1# and 100% for exhaust air 2#; the cloth is dropped on the A-type frame at the rear of the machine; The air washing process involves dipping the coated fabric into an additive and then placing it into an air washing device. After beating and high-temperature setting, the fluff is restored and kept upright. Additives include 4-6 g / L of antistatic agent LM and 1.5-2.5 g / L of softener. Air washing process conditions: set temperature 150-170°C, width 143-145 cm; air volume 25-35, exhaust 5-15; front weight 9-11; rear weight 5-7, cycle time 3.5 seconds / cycle; vehicle speed 5-10 m / min.

2. The method according to claim 1, characterized in that The production process includes: dyeing of grey cloth - adding softener and antistatic treatment - dehydration - drying and shaping - gluing - air washing - shearing - finished product.

3. The method according to claim 2, characterized in that During the shearing process, the machine speed is 6-7 meters per minute, so that the finished product has no loose hair and the pile surface is consistent on the left, middle and right sides.

4. The method according to claim 1, wherein The two raw materials of the velvet fabric have different colors.

5. A bark pattern velvet fabric prepared according to the method according to any one of claims 1 to 4.

6. A textile comprising the bark pattern velvet fabric according to claim 5.