Needle-punched nonwoven fabrics are widely used in automotive interiors, environmentally friendly materials, civil engineering materials, clothing and bedding, etc.; they can also be specially finished according to customer needs, such as back glue, powdering, singeing, calendering, coating, flame retardant, waterproof, oil-proof, cutting, and lamination.
Low-weight needle-punched nonwoven fabrics are mainly used in automotive interiors such as car engine compartments, trunks, coat racks, sunroof visors, bottom guards, seat linings, etc., and are also used in clothing linings, bedding mattresses, sanitary materials, greening, etc.
The general process flow of needle-punched non-woven production line: raw materials-opening machine-feeding machine-combing machine-net laying machine-needling machine-ironing machine-winding machine-finished product
Weighing and feeding
This process is the first process of needle-punched non-woven fabrics. According to the prescribed fiber ratios, such as black A 3D-40%, black B 6D-40%, white A 3D 20%, the materials are weighed and recorded in proportion to ensure the stability of product quality.
If the feeding ratio is wrong, the style of the product produced will be different from that of the standard sample, or there will be a staged product color difference, resulting in batch defects.
For products with multiple raw materials and high color difference requirements, try to disperse them evenly when feeding manually. If possible, use two cotton mixing equipment to ensure that the mixing is as uniform as possible.
Opening, mixing, combing, spinning, and laying
These actions are the decomposition process of the work of several equipment when the fiber is turned into non-woven fabrics, all of which are completed automatically by the equipment.
The stability of product quality depends largely on the stability of the equipment. At the same time, the familiarity, responsibility, and experience of production and management personnel with equipment and products can largely detect abnormalities and deal with them in a timely manner.
Acupuncture
Purpose: Using acupuncture equipment, the general minimum weight is 80g, mainly used in car trunks, sunroof visors, engine room non-woven fabrics, car bottom protection, coat racks, seats, main carpets and other parts.
Key points: According to the product style and requirements, adjust the acupuncture conditions and determine the number of acupuncture machines to be used; regularly confirm the degree of needle wear; set the frequency of needle replacement; use a special needle plate when necessary.
Inspection + rolling
After the acupuncture of non-woven fabrics is completed, the non-woven fabrics are considered to be preliminarily processed.
Before the non-woven fabrics are rolled, they will undergo automatic metal detection. If metal with more than 1mm or broken needles is detected in the non-woven fabrics, the equipment will alarm and stop automatically; effectively prevent metal or broken needles from flowing into the next process.
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: Jun-30-2025