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Dyeing and Finishing Classroom - Production Process of Polar Fleece Dyeing and Finishing
The fleece fabric is soft, lightweight, quick-drying, easy to wash, and can withstand the cold when wet. Under the same conditions, it is twice as cold resistant as merino wool and four times that of cotton. The lightweight fleece is easy to move and comfortable to wear.
29
2022
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06
How many issues should be paid attention to during the color matching process in package dyeing?
1) When color matching, the same type of dye should be selected to facilitate the control and simplification of the dyeing process. (2) The dyeing properties of dyes, such as directness, dyeing rate, and dyeing fastness, should be similar to facilitate the control of color light. Otherwise, the color light after dyeing may vary, and the color light may change due to different degrees of fading during post processing or use. (3) The number of dyes used for color matching should be minimized to facilitate color control. (4) Master the principle of residual color. Residual color refers to the characteristic of two colors having mutual attenuation. If a blue with red light is considered too heavy, a small amount of red residual color (green dye) can be added to reduce it. However, it is important to note that the principle of residual color is used to adjust the color brightness, which is only a minor adjustment. Excessive use can affect the depth and brightness of the color. When color matching, when the affinity and dye uptake rate between dyes differ too much, it will cause the color of the yarn to be different at different dyeing times.
28
07
Characteristics of high-pressure and high-temperature dyeing machines
1、 Due to the equipped cloth lifting motor and variable frequency speed regulation, the cloth speed can reach 600m/min; 2、 The design adopts a structural approach, where the fabric can run at high speed under low tension, and is also equipped with impact points for the fabric. This not only effectively ensures the orderly stacking of the fabric in the entire dyeing cylinder, but also avoids the phenomenon of dyeing creases, improving the fluffiness and feel of the fabric; 3、 The anti volute flow baffle design ensures that the dyeing fabric will not spin during the entire operation process, ensuring the uniformity of the entire dyeing process; 4、 The nozzle used can be adjusted in the gap, allowing for arbitrary adjustment of the fabric according to the actual production situation, effectively achieving full jet dyeing or semi jet dyeing; 5、 The dyeing tank has an internal mesh design on the main body, ensuring that it can maintain a smooth dyeing effect even when dyeing high-density fabrics; 6、 It can be equipped with a fully automatic simulation feeding system, as well as a feeding and temperature control system, which greatly reduces the problem of poor dyeing cylinder performance.
10
01
Two Different Dye Exchange Methods for Dyeing Machines
1、 Permeation of air pressure: It is different from air flow in the entire form, but both use two nozzles, one for pure air flow and the other for liquid flow. When dyeing the fabric, it also needs to pass through the liquid flow nozzle, so that there can be mutual exchange with the dyeing liquid and directly enter the air flow nozzle from the position of the cloth roller, Moreover, the airflow exerts a penetrating pressure on the fabric on the dye solution, so when the dyeing machine starts non traction on the fabric, it will also improve the diffusion speed of the dye solution. 2、 Airflow atomization: It is also necessary to pass the dye solution through the nozzle, and after atomization treatment, it will disperse in the airflow. Then, the atomized dye solution airflow is used to exchange and treat the dyed fabric with each other, ensuring the circulation and traction of the fabric. However, during the exchange process, not only does the atomized dye solution have a large contact area on the entire fabric, but it also has a strong penetration force on the fibers contained in the fabric, Increase the diffusion rate inside the fibers in the dye solution. If we look at the current usage on the market, the atomization of airflow is commonly used in the form of dyeing, and the effect of use is also very good.
12
2021
11
Analysis of the Current Situation and Development Trends of the Dyeing Machine Industry
1. The competitive landscape of the dyeing machine industry. By analyzing the bargaining power of suppliers in the dyeing machine industry, the bargaining power of buyers, the ability of potential competitors to enter, the substitutability of substitutes, and the current competitive power of competitors in the industry, grasp the five forces that determine the industry's profit level; 2. Marketing in the dyeing machine industry. Including marketing philosophy, marketing model, marketing strategy, channel structure, product strategy, etc. 3. The main competitive enterprise in the dyeing machine industry market. This includes analysis of the company's products, business situation (BCG), financial situation, competitive strategy, market share, and competitiveness (SWOT analysis). 4. Economic operation of the dyeing machine industry. Mainly for data analysis, including the number of competitive enterprises in the dyeing machine industry, number of employees, total industrial output value, sales output value, export value, finished products, sales revenue, total profit, assets, liabilities, industry growth ability, profitability, debt repayment ability, and operational ability. 5. The lifecycle of the dyeing machine industry. By analyzing the market growth rate, demand growth rate, product variety, number of competitors, entry and exit barriers, technological changes, and user purchasing behavior of the dyeing machine industry, we can determine the development stage of the industry; 6. Market supply and demand balance in the dyeing machine industry. By analyzing the supply and demand situation, as well as import and export conditions of the dyeing machine industry, we aim to determine the supply-demand balance of the industry and grasp the degree of market saturation in the industry;
High temperature zipper dyeing machine
The high-temperature zipper sample dyeing machine (with a high working temperature of 140 ℃) is suitable for color testing, water washing, and dry cleaning fastness experiments of high-temperature (or room temperature) dyeing samples. It can accurately simulate actual production conditions and achieve the required process effects. The performance and standard configuration of the high-temperature zipper sample dyeing machine are as follows: 1. This machine is made of mirror stainless steel material and has an energy-saving design. 2. Glycerol conducts heat, the test cup is vertically flipped, and the uniformity and reproducibility are excellent. 3. Vertical structure with flushing sink and ergonomic electrical control console. 4. Environmentally reinforced stainless steel SUS316 electric heater, energy-saving and safe to use. 5. The unique insulation design saves energy, ensures craftsmanship, reduces waiting time, and improves work efficiency. 6. Equipped with a programmable computer control system, it has speed control performance for heating (electric heating) and cooling (water cooling).
