Mainly used for making shoes, hats and caps. Clothing using this adhesive not only has a crisp and plump appearance quality, but also has the characteristics of natural smoothness after washing, and can be worn without ironing. Shoes and hats using this adhesive are light and breathable, and have good shape retention. Especially in the shoe-making industry, they also have the advantages of comfortable wearing and reducing shoe odor. The technical indexes of the hot melt adhesive are as follows:
Appearance: white or yellow particles or powder.
Melting point:105-115℃; Melting index:18-22g10min (160℃);
Loose density: 0.48-0.52g/cm3; Angle of repose: 30-35 degrees;
Adhesion strength: ≥1.5-2.0kg/25mm; Washability: ≥5 times.
This kind of hot melt adhesive can be divided into polyamide (PA), polyester (PES), polyethylene (LOPE and HDPE) and polyester amide (PEA). This adhesive has passed five achievements appraisal, completed the national "Seventh Five-Year Plan" and Hebei "Eighth Five-Year Plan" scientific research projects, and won the National Invention Award, Tianjin and Hebei Science and Technology Achievement Awards and three national invention patents.
book decoration
The packaging and sealing of food, beverage, instant noodles, cigarettes, beer, medicines, etc. are mostly completed by hot melt adhesive through sealing machine. The book binding industry has abolished the old-fashioned thread-nail binding and used hot melt adhesive bonding technology, which not only improved the binding quality, but also greatly accelerated the binding speed. The technical indicators of hot melt adhesive are as follows:
Used for packaging books and periodicals.
The appearance is white, granular and yellowish.
Melting point (℃)70-84 65-78
Viscosity 2500-3500 5500-6500
Hardness 78-82 65-75
Curing speed 3-5 0-20
Pressure sensitive adhesive
Mainly used for women's sanitary napkins, children's diapers, sick mattresses, incontinence products for the elderly and so on. Especially the latter, with the aging population structure in China. In the future, the demand of the elderly for incontinence products will increase rapidly. The technical indexes of the hot melt adhesive are as follows:
Appearance: white or light yellow block viscoelastic solid;
Melting point: 80-90℃;
Adhesion strength: 2.0-2.51g/25mm;
Hygienic requirements: tasteless, non-toxic and non-irritating to the skin.
Multipurpose solvent-based hot melt adhesive
In the production of many products, such as hot melt transfer, liquid crystal material sealing, wallpaper anti-counterfeiting, calligraphy and painting pasting, computer printing, food production date typing, wire and cable agent coding, etc. Hot melt adhesive can be used, but the existing granular or powdery dosage forms cannot be used, and it is not necessary to make it into a liquid state in the presence of a suitable solvent and coat it on a certain substrate to obtain a thin and uniform film before it can be used in the next process. Due to the different types of solute (hot melt adhesive), it can be made into solvent-based hot melt adhesive for various purposes.
Hot melt adhesive for edge sealing of furniture
China is a country lacking in wood. Except for high-grade furniture made of a small amount of solid wood, furniture is usually made of fiberboard, shavings or sawdust, and the edges of furniture plates must be bonded with hot melt adhesive to increase the aesthetic feeling, which is similar to solid wood furniture. The technical indicators of the hot melt adhesive are as follows: Appearance: white is light yellow granular or rod-shaped.
Melting point: 70-84℃; Viscosity: 45000-75000( 180℃).
Relative hardness: 70-80%; Curing speed: 8- 12 seconds.
Thermoplastic powder coating
There are mainly two kinds of powder coatings: polyethylene (CDPE) and polyvinyl chloride (PVC). Used for cage fish farming, road guardrails, bicycle baskets, shelves, refrigerator shelves, electric fan covers, etc. According to the need, it can be made into various colors and coated on the surface of metal products for protection and decoration.
Properties: LOPE coated PVC coating
Color: Choose according to the purpose.
Particle size: 80- 120 mesh
Metal adhesion: excellent.
Universal model: OSD
Hot melt adhesive film
Hot melt adhesive films are mainly divided into thermoplastic and thermosetting, and are mainly used for bonding nameplates, plastics, hardware, mobile phone window frames and front covers of electronic products; Good results can be obtained even if it is attached to an uneven surface. Color: Brown
Thickness: 0.1-0.205mm.
Dissolution temperature: 120- 160℃
Pressure: 10-20 psi
Hot melting time: 3-30 seconds
Main models: 3M6 15, TESA8475, TESA8432, Scarpa H 192, etc.