Soft Close Square Shape Toilet Seat
Square toilet seats are a common toilet accessory
Installation and use: when installing a square toilet seat, you need to follow the instructions in the product manual. Generally speaking, you need to fix the mounting feet first, and then place the toilet cover against the insert bar, and make sure that the front edge of the toilet is left with one to two centimetres of reserve. In the process of use, you need to pay attention to keep the toilet cover clean, avoid standing or placing heavy objects on the toilet cover to ensure its normal use and prolong its service life
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Raw cotton bulk fiber dyeing technology
The production of color-spun products such as sweaters and undergarments has gained significant appeal among consumers. In our product development, we utilize environmentally friendly dyes to treat raw cotton, transforming the traditional process from "yarn-spinning-weaving-dyeing and finishing" into "dyeing-cotton-spinning-weaving." This innovative approach results in dyed cotton with brighter colors and better color fastness compared to naturally colored cotton. It also reduces dyeing wastewater discharge, easing environmental pressure. By blending colored cotton with white cotton in varying proportions, we enhance the spinning process, significantly shortening the production cycle and expanding the range of available yarns in the market. At the source of textile production, dyeing raw materials improves subsequent processes, enabling the creation of high-tech new products that meet consumer demand for colorful and unique items.
1. **Basic Requirements for Dyeing Raw Cotton**
The production process involves: loose cotton (cotton) → into the pot → cleaning → dyeing → cleaning → soap pretreatment → out of the pot → dehydration → drying → packaging.
2. **Bulk Fiber Dyeing of Raw Cotton**
2.1 **Scouring**
During planting, harvesting, and processing, raw cotton becomes contaminated. For example, during ginning, small particles from cottonseed shells may stick to the fibers. Even though the cotton is in a loose state, surface impurities affect the dyeing effect. Therefore, scouring before dyeing is essential to reduce contamination and improve the dyeing performance of the original cotton.
2.2 **Dyeing Process of Raw Cotton**
We use eco-friendly dyes to increase color yield and fixation, ensuring good color fastness and avoiding issues like "green barriers" when exporting. The principle of dyeing raw cotton is similar to that of grey fabric. Both involve reactive dyes reacting covalently with hydroxyl groups on the fiber. However, dyeing raw cotton presents challenges: when exposed to water and chemicals, cotton fibers swell, and after drying, they tend to return to their original shape but not completely. This can cause fiber damage, leading to issues like knots or wire formation, which affect the spinning process. Unlike yarn or grey fabric, where the fiber is already processed, raw cotton undergoes more significant changes during dyeing. To address this, we retain natural waxes in the cotton, using additives and temperature control to minimize stress on the fibers, thereby improving elasticity and spinnability after dyeing.
2.3 **Cost Comparison with Other Dyeing Methods**
Traditional post-treatment methods are energy-intensive and polluting. In contrast, raw cotton dyeing allows for direct coloring of fibers, which can be blended with white cotton to produce up to 9 tons of yarn per ton of dyed cotton. Compared to dyeing finished yarn, this method reduces dyeing wastewater by 90% and saves 90% of water, significantly reducing environmental impact. Understanding the relationship between yarn quality and raw cotton quality is crucial for optimizing production, reducing costs, and maintaining stability. While some increase in linters is inevitable, it can be managed through proper blending and process adjustments.
3. **Development Direction of Dyed Cotton Products**
- Purely dyed cotton or blended with white cotton can create dyed yarns with various levels of purity, brightness, and hue, all aligned with environmental goals.
- Dyed cotton yarns have excellent color fastness and are ideal for knitted garments, baby clothes, T-shirts, towels, and socks, with simple finishing.
- Bedding made from dyed cotton offers a soft color palette, meeting the psychological needs of urban dwellers who prefer vibrant, diverse, and small-batch bedding.
- Dyed cotton yarns closely resemble natural-colored cotton. Adding less than 10% ordinary colored yarn to natural-colored cotton products enhances variety without compromising the inherent qualities of natural cotton.
4. **Advantages of Raw Cotton Dyeing in Product Innovation**
- Dyeing raw cotton diversifies textile raw materials, prevents staining of other fibers, and enables the development of blended and interwoven fabrics, enhancing the diversity of pure cotton products.
- It facilitates the creation of fancy yarns with different purity, lightness, and hues, promoting innovation in yarn-dyed fabrics.
- By leveraging fabric design, popular colors, and decorative patterns, we can enhance the style of pure cotton products through advanced CAD technology, meeting the needs of fashion-conscious and individualistic consumers.
- Our JC14 6tex and JC18 2D dyed cotton yarns achieve a CV value of 25% of the Uster 2001 standard, laying a strong foundation for high-tech textiles and premium clothing.
- Dyeing raw cotton increases product technical content, creating a barrier against imitation and offering fresh ideas for product research and innovation.