| 配方类型： |
ADHESIVES |
| 配方说明： |
Front-Seal Envelope Adhesive (Water-Based Dextrin) |
| 配方组成： |
Visc. (Brookfield) @ 80 F/5,000-10,000 cps
Heat to 195 F. Hold 1 h. Cool to 140 F. Add polyvinyl acetate
emulsion
well.
Polyethylene Glycol 400/0.2
Tributyl Phosphate/0.1
Water/32.9
*Potato, tapioca, or waxy maize-based canary dextrins give best
Corn Syrup (or other suitable plasticizer)/1.1
properties.
Mix and cool.
Sodium Bisulfite/0.1
Properties:
Suitable Dextrin*/63.5
Staley's 955 SR Tapioca dextrin, or Stadex 230 dextrin should perform
Solids (Refractometer)/64-67% |
|
