The post-finishing process for denim fabric can include the following: 1.Sanforizing, Sanforizing is a specific finishing process applied to denim fabric to minimize shrinkage. It is named after the machine used for this process, called a sanforizer. The purpose of sanforizing is to stabilize the fabric and prevent excessive shrinkage that can occur during subsequent washing. Sanforizing is a standard process in the denim industry, ensuring that denim fabric maintains its desired dimensions and reduces the need for additional washing or shrinking by the end consumer. 2.Desizing, Desizing is a finishing process applied to denim fabric to remove the sizing agents that were applied during the weaving process. Sizing agents are starch or other chemicals used to improve the fabric's weaving and handling characteristics. Desizing is performed before washing or any other wet processing steps. The purpose of desizing is to remove the sizing agents from the fabric to restore its natural texture and prepare it for further finishing treatments such as washing or dyeing. Desizing is necessary to ensure proper absorption of dyes and chemicals during subsequent treatments and to achieve the desired appearance and characteristics of the denim fabric. After the desizing process, the denim fabric is thoroughly rinsed to remove any residual desizing agents and sizing particles. It is then ready for the next steps in the finishing process, which may include washing, bleaching, dyeing, or other treatments depending on the desired outcome for the fabric. 3.Mercerizing Mercerizing is a finishing process that can be applied to denim fabric to enhance its physical and aesthetic properties. The process involves treating the fabric with a caustic soda (sodium hydroxide) solution and then subjecting it to tension. The treatment causes the cotton fibers in the fabric to swell and straighten, resulting in several beneficial effects. The benefits of mercerizing denim fabric include: 1. Increased strength and durability: Mercerization improves the strength and tensile properties of the denim fabric, making it more resistant to wear and tear. 2. Enhanced dye absorption: Mercerized denim fabric has increased dye uptake capacity, resulting in deeper and more vibrant colors during the dyeing process. 3. Increased luster and sheen: Mercerization creates a smooth surface on the fabric, enhancing its luster and giving it a brighter appearance. 4. Improved dimensional stability: Mercerizing reduces the tendency of denim fabric to shrink, making it more stable and less prone to changes in size or shape during washing or wearing. 5. Better moisture absorption and breathability: The mercerization process opens up the cotton fibers, improving their ability to absorb moisture and making the fabric more breathable and comfortable to wear. Mercerizing is typically done after the denim fabric has been woven but before any other finishing processes such as washing, bleaching, or dyeing. It is an important step in the production of high-quality denim fabric, particularly for achieving a smooth and lustrous surface, vibrant colors, and improved overall performance. Different Post-finishing process has different cost, normally Mercerizing>Desizing>Sanforizing

Store in a cool, dry place: It is important to store your fabric rolls in a cool, dry place to prevent them from getting damp or moldy. Dampness and mold can cause damage to the fabric and make it unusable. Avoid exposure to direct sunlight: Direct sunlight can cause fading and discoloration of the fabric. Store your fabric rolls in a shady or dark place to prevent damage from the sun's UV rays. Keep the rolls flat: It is important to keep the fabric rolls flat to prevent creases and folds from forming. Rolls that are not stored flat can cause permanent creases in the fabric, making it difficult to iron out. Do not store with sharp objects: It is important to avoid storing your fabric rolls near sharp objects like scissors or needles. The fabric can be punctured or damaged by these sharp objects, ruining the quality of the material. Use acid-free tissue paper: If you are storing your fabric rolls for a long period of time, it is recommended to wrap each roll in acid-free tissue paper to prevent damage from moths and other pests. Acid-free tissue paper also helps to protect the fabric from dust and dirt. --- The impact of direct sunlight on fabric rolls is mainly reflected in two aspects: fading and fiber aging. Fading: Many fabrics, especially natural fibers such as cotton and linen, contain dyes. When these fabrics are exposed to sunlight for a long time, the ultraviolet part will react with the chemical bonds in the dye, causing the dye to decompose, resulting in a lighter or altered color of the fabric. This fading process is irreversible, meaning that once it occurs, it cannot be restored to its original color. Fiber aging: In addition to dye decomposition, sunlight can also affect the fiber structure of fabrics. After prolonged exposure to sunlight, fibers gradually lose their original elasticity and strength, becoming more fragile. This not only affects the appearance of the fabric, but may also lead to a decrease in its strength, making it more prone to breakage. Therefore, in order to protect the fabric rolls, the best method is to store them in a cool and dry place, avoiding direct sunlight exposure. If it must be placed in sunlight, you can choose to use sunshade curtains or fabric covers to reduce direct sunlight.

Denim is a textile made of indigo dyed coarse twill cotton fabric, commonly used to make jeans, jackets, and other clothing. Denim is a relatively thick fabric that typically uses warp dyeing techniques to allow indigo to penetrate deep into the yarn, presenting a unique color tone and texture. The origin of denim can be traced back to the mid-19th century, when miners in California began wearing pants made of a specially treated blue cotton fabric. This fabric has the characteristics of wear resistance, water resistance, and dirt resistance, so it is loved by a large number of miners. Over time, denim has gradually become a symbol of fashion and popularity, and is widely used in various clothing and accessories.