Some standard content:
Chemical Industry Standard of the People's Republic of China
HG/T 2695-95
Movie Film Dimensions
Issued on April 25, 1995
Ministry of Chemical Industry of the People's Republic of China
Implementation on January 1, 1996
Chemical Industry Standard of the People's Republic of China
Movie Film Dimensions
Subject Content and Scope of Application
This standard specifies the cutting and punching dimensions of unexposed motion picture films. HG/T2695-9S
Replaces HG7-1350-80
This standard applies to the dimensions of 70mm, 65mm, 35mm, 32mm, and 16mm motion picture raw films. 2. Classification Codes for Dimensions
In order to facilitate the marking of the cutting and punching dimensions of products on various technical documents, it is necessary to specify concise codes for the dimensions of motion picture films. The size code of 35mm film is composed of width, hole type code and vertical span. Its hole type code adopts the provisions of international standard ISO491, and P, N and DH represent three hole types. Other specifications of film have only one hole type, and its code is composed of film width and vertical span. 16mm movie film has two types of single and double row holes. Its code is distinguished by 1R and 2R in the middle of film width and vertical span. The size names, codes and application occasions of various films are listed in Table 1. Table
Size name
35 mm long vertical span movie film size
35mm short vertical span movie film size
32mm (2×16mm single row holes) long vertical span movie film size
32mm (2×16mm single row holes) short paper span movie film size
16mm single row hole long vertical span movie film size16mm single row hole short vertical span movie film size16m double row hole long vertical span movie film size16mm double row hole short vertical span movie film size70 mm long vertical span movie film
65 mm short vertical span electric film
35-P-473
35-DH-475
3S-N-474
35-R-762
35-R-7605
I6-R-762
16-R-7605
16-2R-762
1 16-2R-7605
70-475
65-474
Approved by the Ministry of Chemical Industry of the People's Republic of China on 1995-04-25 Applications
35mm movie positive film, negative film, intermediate film, sound-help negative film, etc. with P-type holes
35mm movie positive film, negative film, intermediate film, sound-cord negative film, etc. with DH-type holes
35mm electric negative film, intermediate film, sound-cord negative film with N-type holes 32mm movie positive film, intermediate film, sound-cord negative film with single-row holes 32 mm movie intermediate film and sound-cord negative film with single-row holes 16mm movie positive film, intermediate film and sound-cord negative film with single-row holes Movie intermediate film and sound-cord negative film with double-row holes [6 mm movie negative
16mm movie negative with double row holes
movie positive
movie negative
1996-01-01implemented
3 size
HG/T 2695—95
3.1. The dimensions of 35mm motion picture film shall conform to the requirements of Table 2 and Figures 1 and 2. Table 2
Film width A
Long vertical span of tooth hole B
Short vertical span of tooth hole B
Tight hole width ℃
Tight hole height D
Tight hole margin E
Tight hole horizontal span F
Tight hole stagger G
Tooth filling width H
Tight hole corner arc radius R
100 consecutive long vertical span spacing L
100 consecutive short vertical span spacing L!
34.975±0.025
4. 750± 0. 012
4. 740 ±0. 012
2. 800 (+0. 008, -0. 015)
1. 980±0. 012
2.01±0.05||t t | 012 | 08 (nominal)
475. 0± 0. 4
474. 0±0, 4
34. 975± 0. 025
4.750±0. 012
2. 800(+0. 008, 0. 015)
1. 850 (+0. 015, -0. 008)
2.01±0.05
28.17±0.05
0. 33 ± 0. 03
475. 0± 0. 4
HG / T 2695 -95
Figure 1 35mm film size
P type hole
HG/T269595
DH type hole
Figure 235mm film hole type
N type hole
3.232mm color film size should comply with the provisions of Table 3 and Figure 3, 16mm single row hole film size should comply with the provisions of Table 3 and Figure 4, 16mm double row hole film size should comply with the provisions of Table 3 and Figure 5 Table 3
Film width A
Sprocket hole length vertical span B
Short vertical span
Sprocket hole C
32 mm film
31.900±0.025
7.620±0.013
7. 605±0. 013
1. 830 ± 0. 013
16mm double row hole film
15.950±0.025
7. 620 ± 0. 013
7.605±0.0t3
1.830±0.013
16mm single row hole film
15. 950 ± 0. 025
7. 620± 0. 013
7. 605± 0. 013
1. 830± 0. 013
Tooth height D
Tooth hole margin E
Tooth hole pull-out distance F
Hole stagger G
Tooth hole corner arc radius R
10 consecutive long spans spacing L
100 consecutive short spans spacing
HG/ T 2695—95
Continued Table 3
32mm film
t. 270± 0. 013
.0, 90 ± 0. 05
15,96±0.03
0.250±0.025
762. 0±0, 8
760. 5±0.8
16 mm double row perforated film
1.270±0.013
0.90±0. 05
12.32 roll test
0.250±0.025
762.0±0.8
760. $±0. 8
Figure 332m movie film size
16 mn single row perforated film
1.270±0. 013
0.90±0.05
0. 250 ± 0. 025
762. 0 ± 0. 8
760.5±0.8
HG/ T 2695 — 95
Figure 416mm single row hole movie film size
Figure 516m㎡ double row hole movie film size
3.370mm, 65mm movie film size should comply with the provisions of Table 4 and Figures 1 and 2.Table 4
Sheet widthA
Tooth hole long spanB
Tooth hole short longitudinal spanB
Tooth hole width
Tooth hole heightD
Tooth edge distanceE
Tooth hole transverse spanF
Tooth hole intersectionG
Tooth hole colony radiusR
Continuous 100 long longitudinal spacingB
Continuous 100 short longitudinal spacingL
69. 95 ± 0. 05
4. 750 ± 0. 012
2. 800 (+0. 008, -0. 015)
1.980±0.012
5. 46±0. 08
55. 24 ± 0. 08
0.51±0.03
475.0±0.8
3.4 For application instructions of motion picture film size, see Appendix A (reference), 6
64. 97 ± 0. 05
4.740±0.012
2. 800 (+0. 008, -0. 015)
1.980±0.012
2. 97 ± 0. 08
56.24±0.08
0. 51 ± 0. 03bZxz.net
474.0±0.8
HG/ T 2695 - 95
4.1 Film measurement should be carried out after reaching equilibrium under the conditions of temperature 23±2C and relative humidity 45%~55%. 4.2 Take 1.5m film as a sample from 3m behind the head of any roll of film or 3m before the tail end. Take 2 samples each time. The measurement data of the two samples are qualified if they all meet the indicators. The measurement results are processed by full numerical comparison method. 4.3 The dimensions of items A, B, C, D, E, and F are measured using an optical length comparator with an accuracy of 0.001mm. The dimensions of item G are measured using a tool microscope with a length measurement accuracy of 0.01mm and an angle measurement accuracy of 90°±1. The length of item L is measured using a length comparator or a special ruler (device) with an accuracy of 0.01mm. 4.4B value is obtained by measuring any 5 pairs (35mm, 65mm, 70mm film) or 3 pairs (32mm.16mm film) of sprocket holes of each sample. C, D, E values are obtained by measuring any 4 pairs (35 mm, 65 mm.70 mm film) or 2 pairs (32nm, 16mm) of sprocket holes of each sample. A, F, G values are obtained by measuring any two non-adjacent parts of the film. A1 Punching uniformity
HG/ T 2695—95
Appendix A
Application instructions for electro-color film size
(reference)
The uniformity of the distance, the size of the film hole and the margin is an important factor affecting the stability of the image. Whether in a roll or in any continuous film hole, the size change from one hole to the next is the most important. A2 Dimensional stability
During the life of the film, it will lose or gain water and shrink or expand due to changes in temperature or humidity. In addition, triacetate and cheese film bases will shrink due to the loss of solvents or plasticizers, which can cause dimensional changes. Generally speaking, the changes in the whole roll are uniform. A3 Definition of low shrinkage film
After the following conditions, the film is measured under the same conditions. The difference between the original size when cutting and punching is less than 0.2% is a low shrinkage film.
Store in the original package for six months under the manufacturer's recommended conditions: b.
Tan;
Wash and dry according to the manufacturer's recommended conditions; d. Expose the whole roll to 18-24℃ and (50-60)% relative humidity for no more than 30 days. A4 Selection of vertical span
The long vertical span or short vertical span of electrocolor positive and negative film is determined by whether to print and the model of the printer. In most ordinary film printers, the negative and positive films must run continuously on the printing gear. The negative film span must be shorter than the positive film span. The degree of shortening is close to the ratio of the film thickness to the curvature radius of the printing gear. At present, the span difference of the printing machine gear design is 0.3%. Experience shows that the deviation can be 0.1%. Using a low shrinkage film base, the negative film span is generally designed to be 0.2% shorter than the positive film span. The negative film will shrink due to washing and aging before printing, which can achieve the desired span difference of (0.3±0.1)%. A5 Influence of humidity
Generally, the film will expand under high relative humidity. The allowance for this factor should be taken into account when designing equipment. Additional notes: This standard was proposed by the National Technical Committee for Standardization of Optical Materials. This standard was drafted and managed by the First Film Company of China Lucky Film Company. China Film Research Institute, China Film Equipment Company, Wuxi Alme Photosensitive Chemical Company, and Shanghai Photosensitive Materials Company participated in the drafting. The main drafters of this standard are Wu Xiankai, Li Quanqin, Jin Wannao, Li Ruiyan, Xie Qingyao, and Fang Jianguo. From the date of implementation of this standard, the former Ministry of Chemical Industry of the People's Republic of China Standard HG7-1350-80 "Electric Film Size" will be used as the standard. The National Chemical Industry Standard of the People's Republic of China Film Size HG / T 2695 — 95
Editor Chemical Industry Standards Editing and Publishing Group
(Standardization Research Institute of Ministry of Chemical Industry)
Postal Code: 100011
Printer Standardization Research Institute of Ministry of Chemical Industry
Copyright reserved. No reproduction allowed
Format 880×1230 1 / 16 Number of words on a sheet 16 000 First edition September 1995 September 1995 First printing 1 — 500
Cost 7.50 Yuan70 mm film) or 2 pairs (32nm, 16mm) of sprocket holes, A, F, G values are obtained by measuring any two non-adjacent parts of the film, A1 Punching uniformity
HG/ T 2695-95
Appendix A
Application instructions for electrocolor film size
(reference)
The uniformity of the spacing, perforation size and margins is an important factor affecting image stability. Whether in a roll or in any continuous perforation, the dimensional change from one hole to the next is the most important. A2 Dimensional stability
During the life of the film, it will shrink or expand due to changes in temperature or humidity. In addition, the triacetate film base will shrink due to the loss of solvent or plasticizer, which can cause dimensional changes. Generally speaking, the changes are uniform throughout the roll. Definition of A3 low shrinkage film
After the following conditions, the film is measured under the same conditions. The difference of less than 0.2% from the original size when cutting and punching is low shrinkage film.
Stored in the original package for six months under the conditions recommended by the manufacturer: b.
Light-drying;
Washing and drying according to the conditions recommended by the manufacturer; d. Exposing to 18-24℃ and (50-60)% relative humidity in the form of a whole roll for no more than 30 days. Selection of A4 vertical span
The long vertical span or short vertical span of electrocolor positive and negative film is determined by whether to print and the model of the printer. In most ordinary film printers, the negative and positive films must run continuously on the printing gear. The negative film span must be shorter than the positive film span. The degree of shortening is close to the ratio of the film thickness to the curvature radius of the printing gear. At present, the span difference of the printing machine gear design is 0.3%. Experience shows that the deviation can be 0.1%. Using a low shrinkage film base, the negative film span is generally designed to be 0.2% shorter than the positive film span. The negative film will shrink due to washing and aging before printing, which can achieve the desired span difference of (0.3±0.1)%. A5 Influence of humidity
Generally, the film will expand under high relative humidity. The allowance for this factor should be taken into account when designing equipment. Additional notes: This standard was proposed by the National Technical Committee for Standardization of Optical Materials. This standard was drafted and managed by the First Film Company of China Lucky Film Company. China Film Research Institute, China Film Equipment Company, Wuxi Alme Photosensitive Chemical Company, and Shanghai Photosensitive Materials Company participated in the drafting. The main drafters of this standard are Wu Xiankai, Li Quanqin, Jin Wannao, Li Ruiyan, Xie Qingyao, and Fang Jianguo. From the date of implementation of this standard, the former Ministry of Chemical Industry of the People's Republic of China Standard HG7-1350-80 "Electric Film Size" will be used as the standard. The National Chemical Industry Standard of the People's Republic of China Film Size HG / T 2695 — 95
Editor Chemical Industry Standards Editing and Publishing Group
(Standardization Research Institute of Ministry of Chemical Industry)
Postal Code: 100011
Printer Standardization Research Institute of Ministry of Chemical Industry
Copyright reserved. No reproduction allowed
Format 880×1230 1 / 16 Number of words on a sheet 16 000 First edition September 1995 September 1995 First printing 1 — 500
Cost 7.50 Yuan70 mm film) or 2 pairs (32nm, 16mm) of sprocket holes, A, F, G values are obtained by measuring any two non-adjacent parts of the film, A1 Punching uniformity
HG/ T 2695-95
Appendix A
Application instructions for electrocolor film size
(reference)
The uniformity of the spacing, perforation size and margins is an important factor affecting image stability. Whether in a roll or in any continuous perforation, the dimensional change from one hole to the next is the most important. A2 Dimensional stability
During the life of the film, it will shrink or expand due to changes in temperature or humidity. In addition, the triacetate film base will shrink due to the loss of solvent or plasticizer, which can cause dimensional changes. Generally speaking, the changes are uniform throughout the roll. Definition of A3 low shrinkage film
After the following conditions, the film is measured under the same conditions. The difference of less than 0.2% from the original size when cutting and punching is low shrinkage film.
Stored in the original package for six months under the conditions recommended by the manufacturer: b.
Light-drying;
Washing and drying according to the conditions recommended by the manufacturer; d. Exposing to 18-24℃ and (50-60)% relative humidity in the form of a whole roll for no more than 30 days. Selection of A4 vertical span
The long vertical span or short vertical span of electrocolor positive and negative film is determined by whether to print and the model of the printer. In most ordinary film printers, the negative and positive films must run continuously on the printing gear. The negative film span must be shorter than the positive film span. The degree of shortening is close to the ratio of the film thickness to the curvature radius of the printing gear. At present, the span difference of the printing machine gear design is 0.3%. Experience shows that the deviation can be 0.1%. Using a low shrinkage film base, the negative film span is generally designed to be 0.2% shorter than the positive film span. The negative film will shrink due to washing and aging before printing, which can achieve the desired span difference of (0.3±0.1)%. A5 Influence of humidity
Generally, the film will expand under high relative humidity. The allowance for this factor should be taken into account when designing equipment. Additional notes: This standard was proposed by the National Technical Committee for Standardization of Optical Materials. This standard was drafted and managed by the First Film Company of China Lucky Film Company. China Film Research Institute, China Film Equipment Company, Wuxi Alme Photosensitive Chemical Company, and Shanghai Photosensitive Materials Company participated in the drafting. The main drafters of this standard are Wu Xiankai, Li Quanqin, Jin Wannao, Li Ruiyan, Xie Qingyao, and Fang Jianguo. From the date of implementation of this standard, the former Ministry of Chemical Industry of the People's Republic of China Standard HG7-1350-80 "Electric Film Size" will be used as the standard. The National Chemical Industry Standard of the People's Republic of China Film Size HG / T 2695 — 95
Editor Chemical Industry Standards Editing and Publishing Group
(Standardization Research Institute of Ministry of Chemical Industry)
Postal Code: 100011
Printer Standardization Research Institute of Ministry of Chemical Industry
Copyright reserved. No reproduction allowed
Format 880×1230 1 / 16 Number of words on a sheet 16 000 First edition September 1995 September 1995 First printing 1 — 500
Cost 7.50 Yuan
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