HY-7021A/7021B DRY LAMINATING ADHESIVE FOR FOOD SOFT PACKING

A. Summarization

     HY-7021A polyurethane dry laminating adhesive main chemical

     HY-7021B polyurethane dry laminating adhesive solidifying chemical

HY-7021A/7021B is a kind of double-component solvent polyurethane dry laminating adhesive with low viscidity and high solid content. It can be applied to the lamination of different materials such as OPP, CPP, PE, CPE, PET, NY, VMPET, VMCPP and etc.

B. Characteristics

1. Good viscosity to kinds of film material, adapt to kinds of plastic film, metalized plastic film;
2. Good performance of anti-freeze, weather resistance and hydrolyzation resistance;
3. With high solid content and low viscidity, good moisture and leveling property, adapt to the laminating of high-speed coating with high solid content and soft packing material with high transparence

C. Technical Specification:

D. Referenced proportion:

     Commonly speaking, HY-7021A/7021B=100/90~100, but the proportion can be chosen according to your need. If lamination aluminum, suggest to use HY-7021A/7021B=100/100. 

E.Dilution & Requirement

generally speaking no need solvents for dilution, If diluted nessaccessary ,can use Ethyl acetate which water requires micrometer or less

F.Equipment: common dry laminating equipment. Coated roller 250~300

G. Glue quantity in coating: 1.5~2.5g/ m² (dry basis)

H. Laminating dry passage temperature: 45℃-60℃-70℃ (for reference)

I. Lamination roller temperature : 30-40℃(for reference)

J.Ripe temperature: 40-50℃

K.Ripe time: over 12-48 hours

Note:

1, the product as a result of a higher concentration, there will be loss of solvent during use, will cause the working concentration gradually increased, will affect the amount of coating, so the process requires the use of a solvent solution of compensation, work to ensure that the concentration in order to ensure consistency coating quality.
2, circular plasticdisc made recommendationsto reduce the amount of glue plastic tray.
3, due to tack glueis not too high, the composite roll temperature is not too high, generally30 ℃ -40 ℃, in order to avoid the primer by the temperature shrink wrinkle.
4, the production process are subject to stringent monitoring products manufactured by the strict quality inspection. The above data for the reference of the data according to user-specific use different production processes and in particular, theratio of the main agent and curing agent, generally based on the condition of structural composites, printing inks, printing, and users of the finished softhardness of request; please before using adequatetests, adverse consequences of improper use, the company assumes no responsibility.

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