Preparation method of environment-friendly daily chemical label capable of being separated and recycled by water washing and product thereof
A labeling and environmental protection technology, applied in the field of labeling, can solve the problems of difficult separation of labels and bottles, low separation integrity, and low separation efficiency, and achieve the effect of solving separation difficulties, good separation integrity, and simple preparation methods
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[0024] Such as figure 1 Shown, a kind of preparation method of the environmental protection daily chemical label that can be washed away from recovery, comprises the following steps:
[0025] A. Apply removable glue on any side of the surface material 1 and any side of the backing paper 2 to form a removable glue layer 3;
[0026] B. Coating a foaming agent or thermal expansion agent on the side of the surface material 1 coated with the removable glue to form a functional layer 4;
[0027] C. Composite the side of the surface material 1 coated with a foaming agent or thermal expansion agent and the side of the base paper 2 coated with the removable glue to obtain an environmentally friendly day that can be washed, detached and recycled. label.
[0028] By coating removable glue on either side of the surface material 1 and the bottom paper 2, and then coating the side of the surface material 1 coated with the removable glue with a foaming agent or a thermal expansion agent, t...
Embodiment 1
[0057] A preparation method of an environmentally friendly daily chemical label that can be washed and separated from recycling, comprising the following steps:
[0058] A. Apply removable glue on any side of the surface material (specifically, white OPS heat shrinkable film with a thickness of 50 μm) and any side of the backing paper (specifically, a PET backing paper with a thickness of 36 μm). The coating amount of glue is 21g / m 2 ;
[0059] Wherein, the preparation method of described removable glue comprises the following steps:
[0060] (1) Dissolve 0.3 parts of sodium persulfate in 10 parts of ethyl acetate, then add 4 parts of isooctyl acrylate, 4 parts of acrylic acid, 13 parts of methyl acrylate and 50 parts of toluene, stir and mix evenly to obtain a mixed solution;
[0061] (2) Add 10 parts of ethyl acetate into the reactor and raise the temperature to 80° C., after the reflux is stable, add the mixed solution prepared in the step (1) dropwise, and keep the react...
Embodiment 2
[0066] A preparation method of an environmentally friendly daily chemical label that can be washed and separated from recycling, comprising the following steps:
[0067] A. Apply removable glue on any side of the surface material (specifically, white OPS heat-shrinkable film with a thickness of 48 μm) and any side of the backing paper (specifically, a PET backing paper with a thickness of 34 μm). The coating amount of glue is 22g / m 2 ;
[0068] Wherein, the preparation method of described removable glue comprises the following steps:
[0069] (1) Dissolve 0.3 parts of sodium persulfate in 10 parts of ethyl acetate, then add 4 parts of isooctyl acrylate, 4 parts of acrylic acid, 13 parts of methyl acrylate and 50 parts of toluene, stir and mix evenly to obtain a mixed solution;
[0070] (2) Add 10 parts of ethyl acetate into the reactor and raise the temperature to 80° C., after the reflux is stable, add the mixed solution prepared in the step (1) dropwise, and keep the react...
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