Solutions to common problems in the use of seam tape for medical protective clothing

Now, the domestic epidemic has basically been effectively controlled, but the production of protective clothing is still in a state of tension. At present, many manufacturers have no experience in producing protective clothing in the early stage, and they are also in danger during the epidemic, so there will be a lot of confusion in fabric selection and production. This time, the editor of the Hot Melt Adhesive Film manufacturer has specially sorted out the common problems and solutions in the use of hot melt adhesive for medical protective clothing, hoping to help enterprises engaged in protective clothing production.

Common problems in the process of seam sealing include: the fabric is not high temperature-resistant, cracks occur during the production process, the adhesive feels non-sticky, and it is easy to open on the third day after pressing. This will lead to the failure of the adhesive and the failure of the hydrostatic test. Comprehensive analysis of the following reasons for reference.

(1)Solutions to the problem of fabric holes in the production process:
1.Replacing low temperature seam tapes
2.Lower the temperature, if does not work, please refer to Step 1
3.reduce air volume
4.slow down the hot air gun running time
5.Accelerate the recalling hot air gun time, Step 3,4,5 could help avoid fabric burning.

(2)non-sticky solution
1. The hot air gun temperature is very low, and has not reached the melting point of the seam tape. The test method is to find a piece of cotton cloth, press it, if it can stick, it will not be a problem. If the adhesion is poor, the hot air gun temperature test can be appropriately increased. If there is a hole in the test, you can refer to the corresponding solution;
2.The material is not compatible with the varieties of fabrics on the market, like there are also fabrics that cannot stick to dozens of seam tapes that have been tested. This requires finding a hot melt adhesive company with R&D capabilities to conduct targeted R&D.
3.For the fabric composite film with PE and TPU as the main raw materials, you can consult the fabric manufacturer for the material of the film. Laminated PE materials can generally use high and low temperature EVA strips, and Other types, choose PU film, TPU lamination.
(3) the solution for opening after sticky a few days.
The fabric covering is surface treated and bonded with false impressions. There will be a good phenomenon during the bonding process, and it will not be in a few days. This phenomenon is very common in the hot melt adhesive bonding industry. High and low temperature fat-dissolving adhesive strips can be selected, which facilitates permeability