Film for glass lamination, laminated glass comprising same, and transportation vehicle comprising laminated glass
A film for glass lamination includes a pigment portion occupying some or a whole of the film, wherein the pigment portion includes a polyvinyl acetal resin, a pigment, a plasticizer, and a trioxane-based compound.
1. A film for glass lamination comprising:
a pigment portion occupying some or a whole of the film,
wherein the pigment portion comprises an extruded pigment layer comprising a mixture of a polyvinyl acetal resin, a pigment, a plasticizer, and a trioxane-based compound,
wherein the trioxane-based compound has a structure of Formula 1 below;
in formula 1, R 1 , R 2 , and R 3 are each independently hydrogen or alkyl group having 1 to 5 carbon atoms, expect that at least one of R 1 , R 2 , and R 3 is an alkyl group having 1 to 5 carbon atoms;
wherein the trioxane-based compounds is comprised in an amount of 0.001 to 3 wt % with respect to a total weight of the extruded pigment layer.
2. The film for glass lamination of claim 1 ,
wherein the pigment portion has a hue deviation of 0.4 or less.
3. The film for glass lamination of claim 1 ,
wherein the extruded pigment layer comprises the pigment and the trioxane-based compound in a weight ratio of pigment to trioxane-based compound of 1:0.05 to 3.
4. The film for glass lamination of claim 1 ,
wherein the pigment is comprised in an amount of 0.001 to 5 wt % with respect to a total weight of the pigment portion.
5. The film for glass lamination of claim 1 ,
wherein the trioxane-based compound has carbon atoms of 9 to 15.
6. The film for glass lamination of claim 1 ,
wherein a haze value of the film for laminating glass may have a difference within 15% after a moisture resistance test, which comprises digesting the film in deionized water of 50° C. for 3 hours, compared to a haze value of the film for laminating glass before the moisture resistance test.
7. A light transmitting laminate comprising:
a first light transmitting layer, the film for glass lamination of claim 1 located on one side of the first light transmitting layer, and a second light transmitting layer located on one side of the film for glass lamination.
8. A vehicle comprising the light transmitting laminate of claim 7 .
9. A pigment dispersion liquid comprising:
a pigment, a plasticizer, and a trioxane-based compound,
wherein the trioxane-based compound has a structure of Formula 1 below;
in formula 1, R 1 , R 2 , and R 3 are each independently hydrogen or alkyl group having 1 to 5 carbon atoms, expect that at least one of R 1 , R 2 , and R 3 is an alkyl group having 1 to 5 carbon atoms;
wherein the trioxane-based compounds is comprised in an amount of 0.1 to 30 wt % with respect to a total weight of the pigment dispersion liquid.
10. The pigment dispersion liquid of claim 9 ,
wherein the plasticizer is comprised in an amount of 68 to 98 wt % with respect to a total amount of the pigment dispersion liquid.
11. The pigment dispersion liquid of claim 9 ,
wherein the pigment is comprised in an amount of 1 to 10 wt % with respect to a total amount of the pigment dispersion liquid.
12. A mixture, comprising:
the pigment dispersion liquid of claim 9 , and
a polyvinyl acetal resin,
wherein the pigment dispersion liquid is present in an amount of 2 to 75 parts by weight based on the polyvinyl acetal resin in an amount of 100 parts by weight.
13. The pigment dispersion liquid of claim 9 ,
wherein the pigment dispersion liquid does not generate agglomeration for 30 days or more after being prepared.