Dry-heat fixation is a textile finishing process that involves the application of heat to a fabric to set the dyes and finishes. In this process, the fabric is exposed to a specific temperature for a set amount of time, which can vary depending on the type of fabric and the desired outcome.
The dry-heat fixation process is commonly used in the textile industry to improve the colorfastness and durability of fabrics. It is especially effective on fabrics made from synthetic fibers such as polyester and nylon, as well as on blends of synthetic and natural fibers. The process can also be used to set creases and wrinkles in fabrics, as well as to improve their shrink resistance.
During dry-heat fixation, the fabric is subjected to high temperatures, typically ranging from 130 to 190 degrees Celsius, for a period of 30 seconds to 5 minutes. The temperature and duration of the process depend on the fabric type and the desired result. For example, fabrics made from polyester may require a lower temperature and shorter exposure time than those made from nylon or cotton.
Dry-heat fixation can be carried out using various types of equipment, including a flatbed press, a rotary press, or a conveyor oven. In a flatbed press, the fabric is placed on a flat surface, and a heated platen is lowered onto it to apply pressure and heat. In a rotary press, the fabric is fed through a set of rollers that apply heat and pressure as it passes through. In a conveyor oven, the fabric is transported through a heated tunnel on a conveyor belt.
Dry-heat fixation is used in a variety of textile applications, including in the production of sportswear, outdoor clothing, and technical textiles. In sportswear, the process is used to set the dyes and finishes on fabrics to improve their colorfastness and durability, as well as to create specific patterns and designs. In outdoor clothing, dry-heat fixation can be used to set creases and wrinkles in fabrics, making them more resistant to wear and tear.
One of the key benefits of dry-heat fixation is that it is a relatively fast and efficient process. It can be used to set dyes and finishes on fabrics in a matter of seconds or minutes, compared to other processes that may take hours or even days. Additionally, the process is relatively energy-efficient, as it does not require the use of large amounts of water or chemicals.
Some of the top manufacturers of dry-heat fixation equipment include Stalam, Ramisch Kleinewefers, and Xetma Vollenweider. These companies produce a range of equipment for the textile industry, including flatbed presses, rotary presses, and conveyor ovens. Additionally, many textile mills and finishing plants have their own in-house equipment for dry-heat fixation, which allows them to control the quality and efficiency of the process.
In summary, dry-heat fixation is a textile finishing process that involves the application of heat to a fabric to set the dyes and finishes. It is a fast and efficient process that is commonly used in the textile industry to improve the colorfastness and durability of fabrics, as well as to set creases and wrinkles. The process is used in a variety of textile applications, including in the production of sportswear, outdoor clothing, and technical textiles. Top manufacturers of dry-heat fixation equipment include Stalam, Ramisch Kleinewefers, and Xetma Vollenweider.
Dry-heat fixation is a method of fixing reactive dyes printed through the ink-jet method. The dyed/printed fabric is passed through hot iron plates in lieu of steam. This method conserves water and energy by using an alternative to steam fixing as well as the ink-jet printing method.