GB/T 30329.5-2019Graphic technology—Colour and transparency of printing ink sets for four-colour printing—Part 5:Flexographic printing (English PDF)

Foreword

GB/T 30329 "Color and transparency of printing inks for four-color printing technology" includes the following 5 parts.

--- Part 1. Sheetfed and thermoset web offset printing;

--- Part 2. Cold-set offset printing;

--- Part 3. Publication gravure printing;

--- Part 4. screen printing;

--- Part 5. Flexographic printing.

This part is Part 5 of GB/T 30329.

This section is drafted in accordance with the rules given in GB/T 1.1-2009.

Introduction

The purpose of this part of GB/T 30329 is to define the chromaticity and transparency characteristics of standard four-color inks for flexographic printing. The result is Obtained under the reference substrate and test conditions specified in this section. Standardized ink enables flexographic printing under the same printing conditions Get similar color effect. The color standards specified in this part of GB/T 30329 can improve the production of flexographic inks and printing separations. For evidence.

This part of GB/T 30329 has collected 13 kinds of paper patterns and 5 kinds of four-color solvents commonly used in flexographic printing on the domestic market based on national conditions.

Agent ink and five kinds of four-color water-based ink samples, the national paper product quality supervision and inspection center was commissioned to carry out the corresponding technical parameter test. Getting After obtaining a sufficient amount of measured data, using the principle of mathematical statistics, the technical indicators for the reference substrate used in this part of the test were screened. in On this basis, the technical indicators of color and transparency of four-color solvent inks and water-based inks were determined.

1 Scope

This part of GB/T 30329 specifies the colors and requirements for a set of primary inks (including additives) for four-color flexographic printing. Transparency characteristics, while also prescriptive test methods.

In order to avoid restricting the development of optimized combinations of different pigments, this section does not specify pigments (or spectral characteristics), but it should meet the Fixed chromaticity requirements.

This section applies to flexographic printing using solvent inks and water-based inks.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document.

GB/T 451.2 Determination of quantitative paper and paperboard

GB/T 8941 Determination of mirror gloss of paper and cardboard

GB/T 19437 Printing technology Spectral measurement and colorimetric calculation of printed images

3 Terms and definitions

The following terms and definitions apply to this document.