Photographing booth construction kit

1 . A kit for constructing a photographing booth used for photographing a subject to be photographed, comprising at least a back sheet arranged as a background of the subject to be photographed in a photographing space,

wherein

the back sheet has a black antireflection film on a main surface side, which faces the subject to be photographed;

the antireflection film is configured by a membrane having a thickness equal to or greater than 2 μm and less than or equal to 40 μm formed from a liquid composition by spray coating;

the liquid composition comprises at least (A), (B) and (C); wherein:

(A) is a resin compound;

(B) is either resin-type particles or inorganic-type particles,

(B) is contained in an amount equal to or greater than 20% by mass and less than or equal to 60% by mass in a total amount of 100% by mass of all solid content in the composition;

(B) comprises (B1) and (B2) in an amount, wherein a total amount of (B1) and (B2) in 100% by mass of (B) is equal to or great than 90% by mass, and a mass ratio of (B2) with respect to (B1 is equal to or greater than 1.8 and less than or equal to 3.3;

(B1) is inorganic-type small particles having a particle diameter (d 1 ) equal to or greater than 0.05 μm and less than or equal to 0.4 μm;

(B2) is inorganic-type large particles having a particle diameter (d 2 ) equal to or greater than 2 μm and less than or equal to 6 μm; and

(C) is a diluent solvent.

2 . The kit according to claim 1 , wherein (B2) comprises silica.

3 . The kit according to claim 2 , wherein silica includes complex silica colored black with a colorant.

4 . The kit according to claim 3 , wherein (B1) comprises carbon black.

5 . The kit according to claim 3 , wherein an outermost surface of a plane formed with a membrane has glossiness of less than 1% against an incident light with an incident angle of 60°, glossiness of less than 5% against an incident light with an incident angle of 85°, reflectance of 4% or less against a light having a wavelength of 550 nm, an L value in CIELAB color space system by SCE method of 22 or less and an optical density of 1.0 or more.

6 . The kit according to claim 5 , wherein, on an outermost surface of a plane formed with a membrane, a maximum height Rz based on JIS B0601:2001 is 7 μm or more, an average length Rsm of contour curve elements is 80 μm or more, a skewness Rsk of a contour curve is 0.3 or less, and Kurtosis Rku of a contour curve is 3 or more.

7 . The kit according to claim 3 , furthermore comprising a box unit having a square cylindrical shape configured by a front wall, a rear wall and both sidewalls and able to be folded, a lid unit having a rectangular flat plane, wherein a thin part of one side thereof is joined with a thin part of one side of an upper end of the box unit capable of opening and closing as a ceiling part of the box unit, and an attachable/detachable roller arranged at upper ends of both sidewalls of the box unit; wherein

by placing over the roller an intermediate part of the back sheet fed from a rolled body, which is the back sheet wound to be a roll, and feeding the back sheet into the box unit, a photographing space can be formed inside the box unit.

8 . The kit according to claim 2 , wherein (B1) comprises carbon black.

9 . The kit according to claim 2 , wherein an outermost surface of a plane formed with a membrane has glossiness of less than 1% against an incident light with an incident angle of 60°, glossiness of less than 5% against an incident light with an incident angle of 85°, reflectance of 4% or less against a light having a wavelength of 550 nm, an L value in CIELAB color space system by SCE method of 22 or less and an optical density of 1.0 or more.

10 . The kit according to claim 9 , wherein, on an outermost surface of a plane formed with a membrane, a maximum height Rz based on JIS B0601:2001 is 7 μm or more, an average length Rsm of contour curve elements is 80 μm or more, a skewness Rsk of a contour curve is 0.3 or less, and Kurtosis Rku of a contour curve is 3 or more.

11 . The kit according to claim 2 , furthermore comprising a box unit having a square cylindrical shape configured by a front wall, a rear wall and both sidewalls and able to be folded, a lid unit having a rectangular flat plane, wherein a thin part of one side thereof is joined with a thin part of one side of an upper end of the box unit capable of opening and closing as a ceiling part of the box unit, and an attachable/detachable roller arranged at upper ends of both sidewalls of the box unit; wherein

by placing over the roller an intermediate part of the back sheet fed from a rolled body, which is the back sheet wound to be a roll, and feeding the back sheet into the box unit, a photographing space can be formed inside the box unit.

12 . The kit according to claim 1 , wherein (B1) comprises carbon black.

13 . The kit according to claim 12 , wherein an outermost surface of a plane formed with a membrane has glossiness of less than 1% against an incident light with an incident angle of 60°, glossiness of less than 5% against an incident light with an incident angle of 85°, reflectance of 4% or less against a light having a wavelength of 550 nm, an L value in CIELAB color space system by SCE method of 22 or less and an optical density of 1.0 or more.

14 . The kit according to claim 13 , wherein, on an outermost surface of a plane formed with a membrane, a maximum height Rz based on JIS B0601:2001 is 7 μm or more, an average length Rsm of contour curve elements is 80 μm or more, a skewness Rsk of a contour curve is 0.3 or less, and Kurtosis Rku of a contour curve is 3 or more.

15 . The kit according to claim 12 , furthermore comprising a box unit having a square cylindrical shape configured by a front wall, a rear wall and both sidewalls and able to be folded, a lid unit having a rectangular flat plane, wherein a thin part of one side thereof is joined with a thin part of one side of an upper end of the box unit capable of opening and closing as a ceiling part of the box unit, and an attachable/detachable roller arranged at upper ends of both sidewalls of the box unit; wherein

by placing over the roller an intermediate part of the back sheet fed from a rolled body, which is the back sheet wound to be a roll, and feeding the back sheet into the box unit, a photographing space can be formed inside the box unit.

16 . The kit according to claim 1 , wherein an outermost surface of a plane, on which a membrane is formed, has glossiness of less than 1% against an incident light with an incident angle of 60°, glossiness of less than 5% against an incident light with an incident angle of 85°, reflectance of 4% or less against a light having a wavelength of 550 nm, an L value of 22 or less in CIELAB color space system by SCE method and an optical density of 1.0 or more.

17 . The kit according to claim 16 , wherein, on an outermost surface of a plane formed with a membrane, a maximum height Rz based on JIS B0601:2001 is 7 μm or more, an average length Rsm of contour curve elements is 80 μm or more, a skewness Rsk of a contour curve is 0.3 or less, and Kurtosis Rku of a contour curve is 3 or more.

18 . The kit according to claim 16 , furthermore comprising a box unit having a square cylindrical shape configured by a front wall, a rear wall and both sidewalls and able to be folded, a lid unit having a rectangular flat plane, wherein a thin part of one side thereof is joined with a thin part of one side of an upper end of the box unit capable of opening and closing as a ceiling part of the box unit, and an attachable/detachable roller arranged at upper ends of both sidewalls of the box unit; wherein

by placing over the roller an intermediate part of the back sheet fed from a rolled body, which is the back sheet wound to be a roll, and feeding the back sheet into the box unit, a photographing space can be formed inside the box unit.

19 . The kit according to claim 1 , furthermore comprising a box unit having a square cylindrical shape configured by a front wall, a rear wall and both sidewalls and able to be folded, a lid unit having a rectangular flat plane, wherein a thin part of one side thereof is joined with a thin part of one side of an upper end of the box unit capable of opening and closing as a ceiling part of the box unit, and an attachable/detachable roller arranged at upper ends of both sidewalls of the box unit; wherein

by placing over the roller an intermediate part of the back sheet fed from a rolled body, which is the back sheet wound to be a roll, and feeding the back sheet into the box unit, a photographing space can be formed inside the box unit.

20 . A black antireflection film, formed on a back sheet arranged as a background of a subject to be photographed in a photographing space of a kit for constructing a photographing booth used for photographing a subject to be photographed,

configured by a membrane having a thickness greater than or equal to 2 μm and less than or equal to 40 μm formed from a liquid composition by spray coating:

wherein

the liquid composition comprises at least (A), (B) and (C); wherein,

(A) is a resin compound;

(B) is either of resin-type particles or inorganic-type particles;

(B) is contained in an amount equal to or more than 20% by mass and less than or equal to 60% by mass in a total amount of 100% by mass of all solid content in the composition;

(B) comprises (B1) and (B2), wherein a total amount of (B1) and (B2) is 100% by mass of (B) is equal to or greater than 90% by mass, and a mass ratio of (B2) with respect to (B1) is equal to or greater than 1.8 and less than or equal to 3.3;

(B1) is inorganic-type small particles having a particle diameter (d 1 ) equal to or greater than 0.05 μm and less than or equal to 0.4 μm;

(B2) is inorganic-type large particles having a particle diameter (d 2 ) equal to or greater than 2 μm and less than or equal to 6 μm; and

(C) is a diluent solvent.