Advantages of Hot Melt Films for Seamless Panties and Underwear
The hot melt film in the textile and garment industry is a film product with or without release paper, which can be conveniently operated continuously or intermittently. Hot melt adhesives can be widely used in the bonding of various fabric materials. Seamless underwear, non-marking underwear, non-marking boat socks andswimsuits are usually treated with TPU high-elastic hot-melt adhesive film strips and PA hot-melt adhesive film, usually TPU high-elastic hot-melt adhesive strips are processed at the sideline , swimsuit edge openings, one-piece bras, trouser waist and leg side openings, and boat socks are widely used. It can be said that the special hot melt adhesive film for seamless underwear, seamless boat socks and swimsuits is TPU high elastic hot melt adhesive film , while PA hot-melt adhesive film is mainly used for large-area fabrics, and TPU hot-melt film can also be used.
Seamless underwear with excellent elasticity
The seamless splicing that needs to be used on the edges of seamless briefs, boxers, bras, swimsuits, waists and hips, and the opening of seamless boat socks often requires high elasticity and rebound of the hot melt adhesive film. Requirements, if the elasticity of the film is too low or the rebound is poor, it will cause obvious tightness and product deformation, resulting in unqualified product quality. Conventional elastic hot-melt film generally stretches at 150%, excessive stretching The length not only requires more force, but also reduces the resilience. Therefore, the strips made of this type of hot melt adhesive film are far from meeting the technical requirements of seamless underwear, and TPU high elastic hot melt adhesive film It can make up for the lack of this application field. It has good stretching force, the conventional stretching can reach 300-400%, and the rebound is close to 100%, which can make the fitted product still have good elasticity and fit close to the body Comfortable, more comfortable and not easy to deform.
Hot melt adhesive film for seamless underwear and panties can be washed at high temperature
TPU high-temperature hot-melt adhesive film itself has a very high melting point, which can reach 150°C, which is much higher than ordinary hot-melt adhesive films with a melting point of only about 90°C, which makes it have good high-temperature washing resistance. It is not a big problem to wash it several times in ℃ water, and dry cleaning is also possible. Although high temperature will reduce the firmness of the glue, don’t worry too much, because it will not come off naturally when it encounters high temperature water after bonding, and it will come back after cooling. It will return to the previous fastness, so it can ensure that the product can be washed repeatedly without opening the glue. Of course, special attention should be paid when making the product. It is necessary to ensure that the hot melt adhesive film is fully melted during operation, otherwise the bonding will not be firm. If the technical requirements are not met, the service life will be reduced even if the requirements are met.
Hot melt adhesive film for seamless underwear has good adhesion
In the field of seamless underwear, swimsuits, and non-marking boat socks, firm bonding is the fundamental requirement. If the bonding is not strong, it will lead to problems such as short service life of seamless underwear and swimsuits. Usually, non-marking underwear is made of soybean protein. Fabrics made of fiber, the surface of these fabrics is smooth and smooth, comfortable to wear, and the hot melt adhesive of TPU component has better adhesion to this fabric than hot melt adhesive of other components, which can keep the underwear from opening after fitting. Long-term use, but it should be noted that the formula of high-elastic TPU is different, the melting point is relatively high, and the requirements for use are also higher. Professional pressing equipment should be used for the operation.
Selection of strip thickness and width
The conventional thickness of TPU high elastic hot melt adhesive film is 0.05mm (5 wires), 0.08mm (8 wires), 0.10mm (10 wires), 0.15mm (15 wires), 0.20mm (20 wires) in seamless underwear In the application, the thickness of 5 filaments, 8 filaments, and 10 filaments is the most common. The thicker the adhesive strip, the better the firmness and durability. Of course, the cost is higher, but at the same time, the thicker the adhesive strip will also cause The product feels hard. In terms of width, hot melt adhesive strips with a width of 1 cm and 2 cm are the most common. If you need other widths, you can also communicate with our business personnel. The width customization range is 10mm-1500mm. Customers can choose according to their own product conditions. width and thickness.
How to use hot melt adhesive strips for seamless underwear
The TPU high-elastic hot-melt adhesive strip has a double-layer structure, one layer of glue and one layer of release paper. When using it, the glued side should be bonded to one side of the fabric, and then the release paper should be removed after it cools down. Secondary fit.
Introduction to the equipment used for hot melt adhesive film for seamless underwear
Partial parts (one-piece bra, trouser waist, etc.) need to use professional pressing equipment. The temperature of conventional irons is difficult to meet the requirements. Due to the difference in product and fabric thickness and equipment types, the actual pressing temperature, pressure and time vary. The parameters need to be tested in the specific operation, the specific parameters will fluctuate slightly with the product technical table, and the values in the technical table parameters of the product are for reference only.
Hot-melt adhesive film can be used for large-area fabric lamination
In some underwear applications, there is no shortage of large-area bonding requirements or less high requirements for firmness and elasticity. Therefore, PA hot-melt adhesive film can be selected for hot-melt adhesive films for such needs. The composition of PA omentum is Poly amide, also known as nylon, the hot-melt adhesive film of this composition has good adhesion to textiles, and is widely used in the bonding of large-area fabrics. Compared with hot-melt adhesive films and strips, hot-melt mesh Membranes are more breathable, softer, and less expensive, but less durable. Although PA hot-melt adhesive film has good firmness and wash ability, it has no elasticity. If there is a need for elastic film, TPU hot-melt adhesive film can also be selected.
Dot Hot Melt Adhesive and One Piece Bra Dot Hot Melt Adhesive
In the selection of hot-melt adhesives for seamless underwear, in addition to hot-melt adhesive films, point-shaped processing hot-melt adhesives and sheet-shaped bra hot-melt adhesive point materials are widely used. There are generally two methods for use, one is Melt the glue directly and apply it on the fabric (PUR hot melt adhesive). The other is to apply the glue on the PET release film first, make it into the shape of a bra, and then sell it to the seamless underwear garment factory. The former garment factory installs the equipment by itself. You can, while the latter requires the purchase of raw materials.
A professional seamless sealing tape manufacturer in China
Masbond is a professional manufacturer of TPU adhesive tape, hot melt film, waterproof tape, rubber tape, single-layer TPU tapes, EVA tape and other adhesive tapes. The products have been widely sold to the international market, and their application scope covers clothing and textiles, outdoor products, luggage and shoe materials, packaging industry, electronics industry, the advertising industry, automobile industry, medical industry and other industries.