Hot sol is the abbreviation of hot sol adhesive. It does not use any solvents in its production and application. It is non-toxic, tasteless and does not pollute the environment. It is known as "green adhesive" and is especially suitable for continuous Used on production lines.
1. Hot melt glue for fabrics
It is mainly used in the production of clothing, shoes and hats. Clothing using this glue not only has a crisp and plump appearance, but also has the characteristics of being naturally flat after washing and can be worn without ironing. Shoes and hats made using this glue are light, breathable, and have good shape retention. They are especially used in the shoemaking industry. They also have the advantages of being comfortable to wear and reducing shoe odor. The technical indicators of hot sol for this purpose are as follows:
Appearance: white or yellowish granular or powdery.
Melting point: 105-115℃: Melt index: 18-22g10min (160℃);
Bulk density: 0.48-0.52g/cm3; Angle of repose: 30-35 degrees ;
Adhesive strength: ≥1.5-2.0kg/25mm; Washing resistance: ≥5 times.
This type of hot melt adhesive can be divided into polyamide (PA), polyester (PES), polyethylene (LOPE and HDPE) and polyester amide (PEA). This type of adhesive has passed five results Appraisal, completed the national "Seventh Five-Year Plan" research project and Hebei Province's "Eighth Five-Year Plan" research project, won the National Invention Award, one Tianjin City and Hebei Province Science and Technology Achievement Award, and three national invention patents.
2. Hot sol for packaging and book binding
Currently, hot sol is used to seal food, beverages, instant noodles, cigarettes, beer, medicine and other packaging through carton sealing machines. Finish. The book and periodical binding industry has now abolished the old thread and nail binding and switched to the hot-melt adhesive technology, which not only improves the quality of binding, but more importantly, greatly speeds up the binding speed. The technical indicators of hot-melt for this purpose are as follows:
For packaging of books and periodicals
Appearance: White granular light yellow flakes
Melting point (℃) 70-84 65-78
Viscosity 2500-3500 5500-6500< /p>
Hardness 78-82 65-75
Curing speed 3-5 0-20
3. Hot melt pressure-sensitive adhesive
Mainly Used in women's sanitary napkins, children's diapers, hospital mattress humiliators, elderly incontinence products, etc. Especially the latter, as my country's population structure continues to age. The demand for incontinence products for the elderly will increase rapidly in the future. The technical indicators of hot sol for this purpose are as follows:
Appearance: white or yellowish block viscoelastic, solid;
Melting point: 80-90°C;
Bonding strength: 2.0-2.51g/25mm;
Hygiene requirements: odorless, non-toxic, non-irritating to the skin.
4. Multi-purpose solvent-based hot sol
In the production of many products, such as: hot-melt transfer printing, liquid crystal material sealing, wallpaper anti-counterfeiting, calligraphy and painting mounting, computer printing, food Production date typing, wire and cable agent coding, etc. are all properties that apply hot sol, but the existing granular or powdery dosage forms cannot be used, and there is no need to make it into a liquid in the presence of a suitable solvent and coat it on a certain substrate. To obtain a thin and uniform film, it can be used for subsequent production processes. Due to the different types of solutes (hot sol), solvent-based hot sol can be produced for various purposes.
5. Hot melt glue for furniture edge sealing
my country is a country lacking in wood. Except for a small amount of high-end furniture using solid wood, most furniture is usually made of fiberboard, particle board or sawdust board. The edges of the furniture panels must be bonded with hot melt glue to increase the aesthetics and resemble solid wood furniture. The technical indicators of hot sol for this purpose are as follows:
Appearance: White, slightly yellow granular or rod-shaped.
Melting point: 70-84℃; Viscosity: 45000-75000 (180℃).
Relative hardness: 70-80%; curing speed: 8-12 seconds.
6. Thermoplastic powder coatings
There are two main categories of polyethylene (CDPE) and polyvinyl chloride (PVC) powder coatings. Used for cage fish farming, road guardrails, bicycle baskets, racks, refrigerator partitions, fan covers, etc. It can be made into various colors according to needs, and can be painted on the surface of metal products to protect and decorate it.
Performance: LOPE coating PVC coating
The color is selected according to the purpose
Particle size 80-120 mesh 80-120 mesh
< p>Excellent metal adhesion