In the processing and printing of non-woven fabrics, simplifying the printing process is an important way to reduce product manufacturing costs in order to reduce the printing process and improve printing quality. This article details some methods of the production and printing process of non-woven fabrics!
The non-woven printing process can mainly adopt two methods: online dyeing and offline dyeing
On line dyeing process: loose fiber → opening and cleaning → carding → spunlace → foam dyeing (adhesives, coatings and other additives) → drying → winding. Among them, foam dyeing has the advantage of saving energy, but it has the disadvantage of uneven dyeing.
Offline dyeing process: hydroentangled nonwoven fabric → feeding → dipping and rolling (adhesives, coatings, and other additives) → pre drying → web drying or drum drying → winding.
Non woven printing process flow.
Non woven printing process
If printing, the color paste made from coating, adhesive, corresponding additives, and water needs to be thickened with a thickener to increase viscosity, and printed on non-woven fabric through a drum printing machine. During the drying process, the adhesive undergoes self crosslinking to fix the color paste on the non-woven fabric.
Taking the non-woven fabric production line as an example, the online printing process is: dispersing fibers → opening and cleaning cotton → combing → water jet → dipping glue → printing (coating and additives) → drying → winding. Among them, dip rolling (two dip and two roll) method or foam dipping method can be used in the glue dipping process. Some factories do not have this process, which is mainly determined according to the customer’s requirements for product quality and application fields.
The printing process mainly adopts drum printing method. Round screen printing is not suitable for non-woven fabric printing because it is prone to clogging the mesh. There are also a few decorative non-woven fabrics that use transfer printing method, but this method has high printing cost and certain requirements for the surface and fiber raw materials of non-woven fabrics.
The method of using coatings and adhesives has a short dyeing/printing process, high efficiency, and low cost, which can fully meet the requirements of relevant application fields. Moreover, this method is simple and easy to implement, suitable for various fibers, has low energy consumption, and is beneficial for environmental protection. Therefore, except for some special products, most non-woven fabric production factories use coating dyeing/printing methods.
The non-woven fabric printing process includes many complex techniques, and printing is a very important step in the process of processing semi-finished products into finished products. Simplifying the non-woven fabric printing process can not only improve the printing quality of non-woven fabrics but also enhance their tensile strength!
Conclusion
In short, non-woven fabric printing not only enables personalized customization of non-woven fabrics, but also serves as a great marketing tool and the best choice for manufacturing personalized gifts and home products. The techniques and steps introduced above are also the core points of non-woven fabric printing. We hope readers can master them and apply them in practical operations to achieve more success.
Dongguan Liansheng Non woven Technology Co., Ltd. was established in May 2020. It is a large-scale non-woven fabric production enterprise integrating research and development, production, and sales. It can produce various colors of PP spunbond non-woven fabrics with a width of less than 3.2 meters from 9 grams to 300 grams.
Post time: Sep-09-2024