TY/T 3902-2019 in English
VALIDTechnical requirements and testing methods of thermal type paper which only used for china sports lottery
- Issued on:2019-02-14
- Implemented on:2019-08-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$243.00
| Standard No: | TY/T 3902-2019 |
| Document status: | VALID |
| Title in English: | Technical requirements and testing methods of thermal type paper which only used for china sports lottery |
| Title in Chinese: | 体育彩票专用热敏纸技术要求及检验方法 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2019-02-14 |
| Implemented on: | 2019-08-01 |
| ICS Classification: | 85.060-Paper and board |
| Chinese Classification: | Y32-Paper |
| Professional Classification: | TY-Sports |
| Related Topics: | ty thread
TY/T Sports lottery thermal paper Analytical Inspection Technology Major Special thermal paper technology for sports lottery Sports Lottery |
本标准规定了体育彩票专用热敏纸的术语和定义、技术要求、检验方法、抽样规则、判定规则、运输 和贮存。本标准适用于体育彩票专用热敏纸的生产制造、质量的评价及检验。
Introduction
Analysis of the core content of the standard
| Technical dimensions | Standard requirements | Test methods |
|---|---|---|
| Paper physical properties | Basis weight 75±3.75g/m², thickness 80±3μm | GB/T 451 series |
| Color rendering properties | Saturated color optical density ≥1.10 | GB/T 28210-2011 |
| Printing accuracy | Register deviation ≤1.0mm | CY/T 49.1-2008 |
Detailed Explanation of Key Technical Requirements
1. Basic Paper Properties
The standard stipulates that the basis weight of thermal paper must be controlled within the range of 75±3.75g/m², with a thickness tolerance of only ±3μm. Specifically, a whiteness of 85±5 and a smoothness of ≥800s are required to ensure print clarity. Lightfastness testing requires that after 8 hours of exposure to strong light at 55°C, the color density retention rate must be ≥80%.
2. Printing Process Control
The width tolerance of the edge strip on the thermal coating surface must be strictly controlled within 4.0±0.1mm, and the position deviation of the reading mark must be ≤1.0mm. The screen ruling of the decorative pattern must be ≥150lpi, and the multi-color overprint error must be ≤0.2mm. The serial number is a unique 13-14-digit code with a character height tolerance of ±0.5mm.
3. Ticket Roll Structure Specifications
Each roll consists of 4 test papers + 500 valid papers, with a roll diameter of 73±1mm. It must withstand a pressure of 350N for 1 hour without deformation. The warning line is marked with a 2-5mm wide red mark, with a total length of 5-10 ticket pages.
Quality Inspection System
Comparison of Key Inspection Items
| Inspection Category | Instrument Requirements | Environmental Conditions |
|---|---|---|
| Color Difference Inspection | Spectrophotometer (D50 Light Source) | 23±5℃/50±10%RH |
| Waterproof Test | Constant Temperature Water Bath Equipment | Immersed in Distilled Water for 8h |
| Friction Resistance Test | Friction Testing Machine | 500g Pressure/40 Times |
Implementation Recommendations
- Establish a raw material batch traceability system to ensure the chemical stability of the thermal coating
- The printing workshop must maintain a constant temperature and humidity (23±2°C/50±5%RH)
- Use online color difference monitoring equipment to control printing quality in real time
- It is recommended to use UV-resistant composite film materials for ticket packaging
Technological Evolution Analysis
Compared to earlier versions, the 2019 version offers the following major improvements: ①Increasing the number of digits in the anti-counterfeiting serial number to 14 ②Increasing the color density retention rate by 15% ③Refining the ticket compression resistance test method ④Improving the environmental adaptability test conditions. Future developments may include nano-coating technology and dynamic color verification.
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