In nonwoven production line, commonly used auxiliary materials (additives) include color masterbatch, functional masterbatch, filler, etc.
In spunbond nonwoven fabric production line, color masterbatch is the most commonly used auxiliary material. Color masterbatch is also used in meltblown nonwoven fabric production line, but its technical requirements are much higher than in spunbond system.
Color masterbatch is an auxiliary material for coloring polymer, so its coloring ability is an important technical and economic index.The coloring ability refers to the amount of masterbatch to be added in order to prepare a certain target color product. It is usually expressed by the weight percentage of the added amount in the product (generally provided by the masterbatch supplier). The coloring ability of the masterbatch is not only related to the nature of the pigment and the proportion of the active ingredients, but also related to the dispersion degree of the pigment.

Technical indexes of common color masterbatch products:
1.Grain size: φ 2mmx3mm～ φ 3mmx4mm, uniform in size, no more than two continuous grains are allowed, and the quantity ratio of two continuous grains shall not be higher than 0.2%.
2.Appearance: the surface is bright and clean, the color is consistent, and there is no color difference.
3.Heat resistance: not lower than ISO 220 ~ 300 ℃ (PP).
4.Melt flow index: 1 ~ 125g / 10min (for spunbond system).
5.Pressure filtration value (DF value): not higher than 1.0 (PA · C ㎡ / g) or expressed by filtration value, and its value is not higher than 0.15kg / (C ㎡ · min).
6.Lightfastness: Grade 5 ~ 8, the greater the grade, the better.
7.Migration resistance: Level 5. The higher the level, the better.
8.Dispersity: less than 1 μ M (Grade 5), good dispersion.
9.Moisture content: less than 0.4%, the less the better.
10.Ash content: less than 0.02%, the less the better.
11.No pungent smell, meeting the requirements of food hygiene standards or FDA requirements.
12.Dosage: 0.5% ~ 5%. It is determined according to needs. The less the dosage, the lower the production cost.

The nonwoven fabric production line of Zhejiang Yanpeng Nonwoven Fabric Machinery Co., Ltd. uses polypropylene (PP) chips with a melt index of (20~40) g/10min as raw materials to produce nonwoven fabric of (10~150) g/m2 in various widths (conventional widths: 1600mm, 1800mm, 2200mm, 2400mm, 3200mm, etc.).
The nonwoven fabric production line adopts the method of direct melt extrusion spinning of polymer, uses the principle of aerodynamics to make the tow move in a certain flow field, decelerates in the way of airflow diffusion, and then uses the process of wire separation and mesh laying, and then consolidates the fiber web into cloth by point bonding.
Zhejiang Yanpeng Nonwoven Machinery Co.,Ltd is a professional manufacturer of nonwoven fabric production line which engaged in development and production for many years. Our company has focused on making nonwoven production line since 2008, We can provide customized single S, SS ,SSS spunbond nonwoven production line,SSMS, SMMS SMS spunmelt (spunbond & meltblown) production lines,and other PP,PET/PLA, BiCo spunbond production line to our customers.  Yanpeng people will continue to be dedicated to the development of non-woven equipment and related products.We sincerely want to return our customers with cost-effective products and best service.  Our polypropylene(PP) spunbond nonwoven equipment is constantly updated after years of production practice, which makes the design of non-woven fabric production line more perfect and the operation easier.Our equipment is constantly improving. Our equipment is constantly improving, under the premise of complete specifications, superior performance, excellent quality and beautiful color, it can also add recycled material and filling to reduce the cost of products.