The non-woven bags and environmental protection bags on the market are all very good in quality and not expensive, but they are basically waterproof. So, how are these bag-like waterproof effects achieved?

Many people may know that non-woven fabric is an environmentally friendly and breathable material, which is relatively easy to decompose in the natural environment. Usually, non-woven bag factories directly use this kind of fabric to make products. The general printing process includes screen printing or offset printing. This printing process has no special changes to non-woven fabrics. For environmentally friendly ink printing, the printed patterns on the environmentally friendly bag will be washed away after washing.

Non-woven bag lamination is a production process different from screen printing. Its characteristic is that the printed patterns can achieve photo-level effects and can print various complex color patterns. It is covered on the surface of the non-woven fabric. A layer of PP film, so that the non-woven fabric has also been greatly improved in terms of firmness. At the same time, the non-woven fabric can also have the characteristics of waterproofing, and the printed pattern on its surface will not fade due to washing.

  So, the actual effect is this layer of film. The non-woven bags we usually use are not faded and waterproof, to a large extent rely on its role in this.