Have you ever encountered delamination or unboxing issues caused by coating penetration during storage of kraft paper tape SKPT?

Have you ever encountered delamination or unboxing issues caused by coating penetration during storage of # kraft paper tape # SKPT?

The “coating penetration” of uncoated kraft paper tape usually refers to surface release (anti sticking) treatment or the penetration of glue into the interior of the paper layer. The non coated tape is made of kraft paper as the substrate, and the back of the tape is not coated with PE film. Instead, a “filling/anti sticking treatment” is used to ensure that the adhesive does not penetrate the paper surface, while maintaining the characteristic of the kraft paper tape surface being able to write. Release treatment (filling and anti sticking process): A release treatment method that directly fills and anti sticking seams on the back of the adhesive coating. The adhesive does not penetrate to the back, and the tape does not stick to hands or packaging when torn off. The surface can still be used for writing.
The difference between non coated kraft paper tape and coated tape: ordinary self-adhesive kraft paper tape relies on a PE film release layer for anti sticking; Non film type uses environmentally friendly release agents to fill the gaps, making the paper easier to degrade, recycle, and more environmentally friendly # PPWR.
Non coated kraft paper tape is mainly used for sealing boxes, covering handwriting on cardboard boxes, and mounting photo frames. It has good adhesion, can be torn by hand, and can be written on, but its waterproof performance is not as good as the coated type. If you need stronger waterproof and moisture-proof properties, you can choose coated kraft paper tape; If environmental protection and recyclability are prioritized, non coating is more suitable.
The impact of coating penetration on tape quality:
Front penetration (glue coating): The key to the non film coating process is to control the glue from penetrating to the back, otherwise the paper layers are prone to adhesion after the tape is rolled up; The adhesive solution needs to penetrate into the raw paper fibers to form an “anchor” and ensure the adhesive strength. If the penetration is too shallow, the peeling force will be insufficient, and if it is too deep, the adhesive will penetrate, affecting the appearance and adhesion. ‌
Back anti-seepage (release treatment): At the same time, it is necessary to take into account that the release agent cannot penetrate into the adhesive layer, otherwise it may affect the adhesion of the tape and cause problems such as delamination and unpacking during storage.
So paper, adhesive formula, release treatment technology, and release agent quality (stability) are the key factors determining the quality of non coated kraft paper tape. The non film self-adhesive kraft paper tape/writable self-adhesive kraft paper tape produced by Dongguan Nabai Packaging Products Co., Ltd. adopts high-quality kraft paper, high-quality glue, and high-quality environmentally friendly release agent. With mature and stable technology, it is highly recognized by users. Welcome users from all industries to explore and negotiate cooperation together!