The hairdressing production method of aluminium foil
Technical field
The present invention relates to the production method of hairdressing with aluminium foil.
Background technology
So far, domestic have only Hebei Zhuozhou Haoyuan foil Co., Ltd production hairdressing aluminium foil.Its production method be with the PET film cut, apply dry behind the thermosol again with cut after aluminium foil carry out compound.Certainly, two kinds of processing are generally arranged after compound, the one, carry out coiled strip and the web-like finished product, the one, break to open and handle and must the sheet finished product.
In the aforementioned production method, thermosol is that following coating process is coated on the PET film: an applicator roll is lain in a horizontal plane in Jiao Penzhong, the thermosol of liquid state by applicator roll, is coated in PUR on the PET film.Use this kind painting method, PUR can not be dry rapidly, must dry by the glue that baking oven will be coated on the PET film, and is by one group of composite roll that PET film and aluminium foil is compound again.So its speed of production is subjected to restricting significantly, speed of production is a per minute 6-10 rice, and output is very little certainly, but every day at most the production hairdressings with 14400 meters on aluminium foils.
Summary of the invention
What the present invention solved is exactly that existing hairdressing makes that with thermosol coating method in the production method of aluminium foil thermosol can not be dry rapidly, causes the problem that its speed of production is very slow, output is very little.
Hairdressing of the present invention is with the production method of aluminium foil, be with the PET film cut, apply behind the thermosol with cut after aluminium foil carry out compound; Described thermosol is coated on the PET film by following spraying method: liquid thermosol is sprayed on the PET film that moves with 40-60m/min at the spray gun by temperature 120-140 ℃ under the 20-60Mpa pressure, and the quantity for spray of thermosol is 20-50g/h.
After the present invention was coated in thermosol on the PET film by spraying method, thermosol can be dry rapidly, need not dry, and speed of production reaches 40-60m/min, but production hairdressing every day is compared the raising that matter has been arranged with 70000 meters on aluminium foil for 14400 meters with former output.
As further improvement, in the aforementioned production method, before cutting, aluminium foil carries out embossing.Embossing has not only beautified the hairdressing aluminium foil, the more important thing is by embossing to make having certain clearance to be separated from each other between the sheet finished product that stacks.If there is not embossing, because electrostatic interaction can bond together mutually, cause in use between the sheet finished product that stacks, can once pick up many hairdressing aluminium foils.Bonding mutually in order to prevent between the sheet finished product, generally need between the sheet finished product, place paper they are isolated mutually.By embossing, both saved above-mentioned paper, hairdressing is separated from each other with aluminium foil.
Description of drawings
Fig. 1 is the production method flow chart of the embodiment of the invention 1.
Fig. 2 is the production method flow chart of the embodiment of the invention 2.
Fig. 3 is the production equipment sketch of embodiment 1.
The specific embodiment
Embodiment 1
With reference to figure 1, Fig. 3, two rollers 1 of laying aluminium foil rotate, and being admitted to top roll after aluminium foil is cut is that steel rider, lower roll are between the composite roll 4 of Polyurethane roller.Simultaneously, the roller 2 of laying the PET film rotates, and is gone up thermosol through spray gun 3 by spraying after the PET film is cut, and is admitted to top roll afterwards and is steel rider, lower roll and be to carry out compound with aluminium foil between the composite roll 4 of Polyurethane roller.Carry out coiled strip after compound and get the web-like finished product.
Spraying is during thermosol, is that the translational speed of PET film, aluminium foil is 45 meters/minute on 125 ℃ the spray gun spraying PET film by temperature under the compressed air effect of 145 ℃ liquid thermosol 30Mpa, and the quantity for spray of thermosol is 30 Grams Per Hours.
Embodiment 2
With reference to figure 2, the embossing of aluminium foil elder generation, cut and be admitted between two composite rolls again.Simultaneously, sprayed thermosol through spray gun after the PET film is cut, also be admitted to afterwards between two composite rolls and carry out compound with aluminium foil.Break a processing after compound and get the sheet finished product.
Spraying is during thermosol, is that the translational speed of PET film, aluminium foil is 55 meters/minute on 135 ℃ the spray gun spraying PET film by temperature under the compressed air effect of 155 ℃ liquid thermosol 50Mpa, and the quantity for spray of thermosol is 40 Grams Per Hours.