PES/PA Woven Fusible Interlining Factory

How to control the amount and uniformity of hot melt adhesive during production? What pretreatment is required before applying adhesive to the adhesive interlining?
Control of hot melt adhesive application amount and uniformity
The amount and uniformity of hot melt adhesive have a crucial impact on the performance of adhesive interlining. Excessive hot melt adhesive may cause the fabric to feel stiff after bonding, affecting wearing comfort and increasing production costs; insufficient application or uneven distribution may lead to insufficient bonding strength and affect the durability of the product. Therefore, precise control of the amount and uniformity of hot melt adhesive is the key to achieving high-quality adhesive interlining.
HETAI TEXTILE has adopted advanced technical means in this regard. We are equipped with a high-precision hot melt adhesive coating machine, which adopts an advanced coating control system, which can accurately adjust the coating amount to ensure that each coating can meet the preset standards. The design of the coating machine fully considers the fluidity of the hot melt adhesive, and achieves uniform distribution of the hot melt adhesive on the interlining by optimizing the shape of the coating head and the coating speed.
In order to ensure the stability of the woven fusible interlining quality, HETAI TEXTILE also adopts an online monitoring system. The system can monitor various parameters in the coating process in real time, such as coating amount, coating speed, temperature, etc. Once an abnormality is found, it will immediately alarm and adjust, thus effectively avoiding coating quality problems caused by equipment failure or operating errors.
We also focus on the selection and formulation optimization of hot melt adhesives. By working closely with suppliers, we select high-quality hot melt adhesive raw materials and adjust the hot melt adhesive formulation according to different application requirements to ensure that it has good fluidity and bonding properties. Before coating, we will also preheat the hot melt adhesive to improve its fluidity and further ensure the stability of coating quality.

Pretreatment of adhesive interlining fabric before coating adhesive
Before applying adhesive to adhesive interlining, a series of pretreatments are required to ensure the bonding effect and the quality of the final product. These pretreatment steps include cleaning, drying, shaping, etc., which are aimed at removing impurities on the surface of the interlining, improving its surface cleanliness and flatness, and thus enhancing the adhesion and bonding strength of the adhesive.
HETAI TEXTILE also has significant advantages in this regard. We have a complete pretreatment production line equipped with advanced cleaning and drying equipment. The cleaning equipment uses high-pressure water flow and high-efficiency detergents to thoroughly remove impurities such as oil, dust, etc. on the surface of the interlining fabric to ensure the cleanliness of the bonding surface. The drying equipment uses hot air circulation technology to quickly dry the interlining fabric after cleaning to avoid the influence of residual moisture on the bonding effect.
In terms of shaping, HETAI TEXTILE uses advanced heat setting technology. By precisely controlling the heating temperature and setting time, we can effectively adjust the dimensional stability and shape memory of the interlining fabric so that it can maintain a stable shape and size during the subsequent bonding process. This step is of great significance for improving the wrinkle resistance and wearing comfort of the bonded interlining fabric.
In addition, we also introduced advanced surface treatment technology in the pretreatment process. By chemically or physically treating the surface of the interlining fabric, we can change its surface polarity and roughness, thereby improving the adhesion and permeability of the adhesive. This step plays a key role in improving the bonding strength and durability.
It is worth mentioning that HETAI TEXTILE also pays attention to environmental protection and energy saving in the pretreatment process. The cleaning agents and setting agents we use meet environmental protection standards and will not cause harm to the environment and human health. At the same time, we have achieved efficient use of energy and minimized waste emissions by optimizing equipment design and operating processes.