LAMINATION FILM AND LIGHT-TRANSMITTING LAMINATE INCLUDING SAME
The lamination film includes an increasing thickness area, wherein a thickness of the increasing thickness area increases from a first end to a second end, wherein the lamination film comprises at least one surface comprising a plurality of embossments, and wherein at least a portion of the at least one surface is disposed on a surface of the increasing thickness area.
1 . A lamination film comprising an increasing thickness area,
wherein a thickness of the increasing thickness area increases from a first end to a second end,
wherein the lamination film comprises at least one surface comprising a plurality of embossments, and
wherein at least a portion of the at least one surface is disposed on a surface of the increasing thickness area.
2 . The lamination film of claim 1 ,
wherein a maximum value among gloss values measured at an acceptance angle of 20°, 45°, 60°, 75° and 85° is 15% or less at a first portion and a second portion separated from the first portion on the at least one surface, respectively.
3 . The lamination film of claim 1 ,
wherein a Spd value (number of peaks per unit area) of the at least one surface is 200 mm −2 or more.
4 . The lamination film of claim 1 ,
wherein when a thickness of the first end is referred to as Ha and a distance from the first end to the second end is referred to as w, a ratio of the Ha to the w is 0.0002 to 0.0015.
5 . The lamination film of claim 1 ,
wherein a standard deviation of gloss values measured at an acceptance angle of 20°, 45°, 60°, 75° and 85° is 6% or less at a first portion and a second portion separated from the first portion on the at least one surface, respectively.
6 . The lamination film of claim 2 ,
wherein a difference between the maximum value and a minimum value among gloss values measured at an acceptance angle of 20°, 45°, 60°, 75° and 85° is 10% or less at the first portion.
7 . The lamination film of claim 1 ,
wherein the Spd value of the at least one surface is 1500 mm′ or less.
8 . The lamination film of claim 1 ,
wherein a Sku value (kurtosis value) of the at least one surface is 0.5 to 4.
9 . The lamination film of claim 1 ,
wherein a S10z value (ten point height of irregularities) of the at least one surface is 30 to 90 μm.
10 . The lamination film of claim 1 ,
wherein the at least one surface comprises minute unevenness.
11 . The lamination film of claim 1 ,
wherein the lamination film is a monolayer film with one layer or a multilayer film with two layers or more.
12 . The lamination film of claim 1 ,
wherein the lamination film comprises a polyvinyl acetal resin.
13 . A light-transmitting laminate comprising:
a first light-transmitting layer;
a lamination film disposed on one surface of the first light-transmitting layer; and
a second light-transmitting layer disposed on the lamination film;
wherein the lamination film comprises an increasing thickness area,
wherein a thickness of the increasing thickness area increases from a first end to a second end,
wherein the lamination film comprises at least one surface comprising a plurality of embossments, and
wherein at least a portion of the at least one surface is disposed on a surface of the increasing thickness area.
14 . The light-transmitting laminate of claim 13 ,
wherein a maximum value among gloss values measured at an acceptance angle of 20°, 45°, 60°, 75° and 85° is 15% or less at a first portion and a second portion separated from the first portion on the at least one surface, respectively.
15 . The light-transmitting laminate of claim 13 ,
wherein a Spd value (number of peaks per unit area) of the at least one surface is 200 mm −2 or more.
16 . The light-transmitting laminate of claim 13 ,
wherein when a thickness of the first end is referred to as Ha and a distance from the first end to the second end is referred to as w, a ratio of the Ha to the w is 0.0002 to 0.0015.
17 . The light-transmitting laminate of claim 13 ,
wherein a standard deviation of gloss values measured at an acceptance angle of 20°, 45°, 60°, 75° and 85° is 6% or less at a first portion and a second portion separated from the first portion on the at least one surface, respectively.
18 . The light-transmitting laminate of claim 14 ,
wherein a difference between the maximum value and a minimum value among gloss values measured at an acceptance angle of 20°, 45°, 60°, 75° and 85° is 10% or less at the first portion.
19 . The light-transmitting laminate of claim 14 ,
wherein the Spd value of the at least one surface is 1500 mm −2 or less.
20 . The light-transmitting laminate of claim 14 ,
wherein a Sku value (kurtosis value) of the at least one surface is 0.5 to 4.