How to prevent elastic cloth from bouncing during rinsing?

In the process of washing and dyeing jeans, the elastic loss caused by the degradation of polyurethane fibers is basically irreparable, so it is necessary to do a good job of pre-production samples to ensure that there are no quality problems in large-scale production. According to the physical and chemical properties of polyurethane fibers, elastic jeans containing polyurethane fibers cause elastic loss in the process of washing, mainly due to improper formulation or operation in the process of washing and dyeing. It leads to the breakage and dissolution of polyurethane fibers, and eventually leads to the loss of elasticity.
In the process of rinsing, polyether polyurethane fibers are damaged more seriously because of the non-chlorine-resistant bleaching agent and the formation of nitrogen-chlorine bonding in hypochlorite solution. When the water temperature in the cylinder is too high or the time is too long, the polyurethane fibers will degrade, resulting in fabric elasticity. So how to avoid bouncing during rinsing?
(1) Pre-production testing;
(2) Bleaching water must be allocated before it can be injected into the cylinder, and direct feeding is prohibited.
(3) Drifting water must be added under the condition of equipment rotation in order to prevent the local concentration from being too high and causing bullet loss.
(4) The chlorine release from the residual bleaching water on the clothes after high temperature drying leads to the degradation of polyurethane fibers, and attention should be paid to cleaning after bleaching.
(5) Strengthen personnel management of online work, monitor production status, and prevent quality problems caused by processing temperature or time exceeding process requirements.
When faced with such a high risk of bullet-loss, many people will ask if there is a better solution to rinse and prevent bullet-loss. The answer is yes, of course, Novozyme cold bleaching enzymes solution can completely solve the problem of elasticity in rinsing process, because cold bleaching enzymes only play a role in Indigo color, play a role in bleaching, no damage to other fibers, is very suitable for elastic fabric bleaching treatment.