Meet Diapers S Cut Side Tape

Author:Baby & Adult Diaper Materials FROM:Diaper Materials Manufacturer TIME:2023-03-06

With the increase of my country's per capita purchasing power and the change of consumption and parenting concepts, the market of baby diapers has maintained a momentum of rapid growth. This article introduces one of the raw materials of diapers, S cut side tape

side tape 

1. Introduction of S cut side tape for diapers

S cut refers to the process of cutting in an S shape. S cut side tape is a structure on the diaper, and it is a form of fastener for fixing the action. It is also called Velcro. It is different from another form of PP stickers that are left and right stickers. PP stickers are scraped on the PP film.

Compared with PP stickers, it has the following advantages:

Stronger than PP stickers;

Its buckle is not affected by seasons, and PP stickers are affected by temperature and humidity;

Its appearance is very beautiful and the noise is small, so it is more favored by customers.

In its structure, the magic hook is used to overlap the front waist sticker, and the ear sticker is fixed on the main body of the diaper with glue. When compounding the material online, there are two parts to use hot-melt adhesive, the first is the magic hook, which is to be glued on the composite layer, and the second is the ear patch, which is to be pasted with hot-melt glue. on diapers. The composite layer is generally a 2-3 layer structure, and each layer of the 3-layer structure is: non-woven fabric, elastic film, and non-woven fabric.

 S cut side tape

2. The production process of S cut side tape

The online lamination process of S cut side tape: First, the magic hook coil is squeegeeed, about 20~60µm thick, and then S-shaped cutting is performed after laminating with the ear sticker coil. After cutting, it will be divided into 2 continuous left and right stickers, squeegee or spray 10~25µm on one side of the ear sticker position, then cut and divide the two sides, and bond them to the non-woven fabrics on both sides of the diaper. Spray glue on the other side of the ear patch, and compound it with the surface layer non-woven fabric that has been glued to complete the online process.

How to glue the S-cut ear stickers:

Glue spray (fiber and spiral): The glue spray is uneven, the amount of glue is easy to be small, and the adhesive force is relatively weak;

Thread glue: The glue distribution is uneven, the local strength is high, the glue line is too thick, and the glue is easy to seep to the other side of the non-woven fabric;

Squeegee: The glue covers a large area and the glue is evenly applied.

Online compounding process suggestion:

It is recommended to speed up the production line appropriately;

It is recommended that the opening distance (the distance from the gluing place to the roller pressing place) be as short as possible;

In winter, it is recommended to move the substrate into the workshop in advance, and keep the workshop room temperature higher than 15 ℃ or local heating;

It is recommended that the pressing force of the rollers be large enough.

The first three suggestions are all because the line speed of the S cut side tape is different when the diaper body is matched and bonded. Generally, the line speed of the S cut is only about 1/9 of the line speed of the diaper. The speed of S-cut is slow, so the opening time is long, which is not conducive to the best bonding effect of the glue. Therefore, only when the line speed of the diaper is increased, the speed of S-cut can be increased; coupled with the short opening distance, it can be fitted as soon as possible. The last suggestion is also to improve the wetting and bonding of the glue to the substrate.

 Adhesive side tape

As one of the raw materials of diapers, with the development and progress of society, the development of S cut side tape has also attracted more and more attention. Knowing the relevant knowledge of this kind of Velcro is helpful for people to understand the structure of diapers, and then use diapers better.

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