In a bar environment, the backrest of a linen bar chair is easily contaminated by alcohol, food residues, and stains. Frequent friction and light exposure can also easily cause fading, affecting the appearance and service life. Anti-fouling and anti-fading treatment of linen can not only maintain the neat appearance of the bar chair and reduce the cost of cleaning and maintenance, but also enhance the overall style of the bar and extend the service life of the furniture. Therefore, in-depth analysis of relevant treatment technologies is of great significance to improving the practicality and durability of linen in bar chair applications.
Pretreatment is the basic link for anti-fouling and anti-fading treatment of linen. First, impurities, pectin, wax and other substances on the surface of linen are removed by water washing or enzyme washing to improve the cleanliness and reactivity of the fiber. When washing with water, control the appropriate temperature and time to avoid damaging the fiber structure; enzyme washing uses the specificity of biological enzymes to gently decompose impurities. After water washing or enzyme washing, softening treatment is performed to reduce the friction factor between fibers by adding softeners, making the linen feel more comfortable. At the same time, it is also conducive to the uniform penetration of subsequent anti-fouling and anti-fading treatment agents and enhance the treatment effect.
Antifouling coating technology is the key to protecting linen from stains. Nano-coating technology is used to form a nano-scale mesh structure film on the surface of linen. The film has super hydrophobicity and super oleophobicity. Water droplets and oil droplets roll in a spherical shape on its surface and are difficult to adhere to, thereby effectively preventing the penetration of stains such as wine and oil stains. In addition, fluorine-containing antifouling finishing agents are also widely used in linen processing. The fluorocarbon chain in its molecular structure can reduce the surface tension of the fabric, making it difficult for stains to adhere. The finishing agent is firmly combined with the linen fiber and has good durability. After multiple washings, it can still maintain the antifouling effect.
Optimizing the dyeing process is an important way to improve the anti-fading performance of linen. Select high-performance reactive dyes, whose active groups in the molecular structure can react chemically with the linen fiber to form a covalent bond, so that the dye is firmly connected to the fiber and improve the color fastness. During the dyeing process, strictly control the dyeing temperature, time, pH value and other parameters. For example, the segmented temperature rising dyeing method is adopted. The dye is first dyed evenly on the fiber at a low temperature, and then the temperature is gradually raised to promote the reaction between the dye and the fiber to ensure uniform and firm dyeing. At the same time, dye fixatives are added to form a protective film on the fiber surface, which seals the dye molecules and prevents them from falling off under the influence of external factors, thereby effectively reducing fading.
In a bar environment, light is an important factor that causes linen to fade, especially ultraviolet radiation. By adding ultraviolet absorbers to treat linen, ultraviolet absorbers can absorb the energy of ultraviolet rays and convert it into harmless heat energy for release, preventing ultraviolet rays from destroying the molecular structure of dyes and linen fibers. The ultraviolet absorber can be attached to the surface of linen by padding or coating to make it evenly distributed. In addition, a finishing agent with anti-ultraviolet function is selected to form a protective film on the surface of linen, further enhancing the ability to block ultraviolet rays and prolonging the color retention time of the linen backrest.
Cross-linking treatment can effectively improve the anti-fouling, anti-fading properties and overall strength of linen. Using multiple reactive groups in the cross-linking agent molecules to react with the hydroxyl groups on the linen fiber molecules, chemical bonds are formed between the fiber molecules, making the fiber structure tighter. This cross-linking structure can not only reduce the penetration channel of stains, but also enhance the binding force of the fiber on the dye molecules to prevent the dye from falling off. At the same time, cross-linking treatment improves the mechanical properties of linen, making it more resistant to friction during use, reducing fiber damage and dye peeling caused by friction, thereby achieving a synergistic improvement in anti-fouling, anti-fading performance and durability.
To ensure the effectiveness of anti-fouling and anti-fading treatment of linen, a complete testing and quality control system needs to be established. The anti-fading performance is evaluated through washing color fastness tests and rubbing color fastness tests, and the anti-fouling ability is tested by stain simulation experiments. A professional colorimeter is used to measure the color changes before and after treatment and after different tests, and the degree of fading is quantitatively evaluated; the anti-fouling effect is judged by observing the adhesion and penetration of stains on the surface of the treated linen. During the production process, the process parameters of each treatment process are strictly controlled, and the treated linen is regularly inspected to ensure stable product quality and meet the use requirements of bar chair backrests.
