QB/T 1866-93 Explained: Key Points of China's Offset Resin Printing Ink Standard

PRC Industry Standard: Offset Resin Printing Ink QB/T 1866-93

1 Core Subject and Scope

This standard defines product classification, technical requirements, test methods, inspection rules, and marking, packaging, transportation and storage for offset resin printing ink. It governs ink used on single-, double- or multi-color offset presses and intended for images, trademarks and similar work on offset paper and other printing papers.

2 Normative References

ZBA 17005 — Classification, nomenclature and type designation for printing ink products

GB/T 14624.1 — Ink color test method

GB/T 14624.1 — Ink tinting strength test method

QB 559 — Ink fineness test method

GB/T 14624.3 — Ink flow test method

GB/T 14624.4 — Ink film drying test method

GB/T 14624.5 — Ink tack test method

QB 570 — Ink setting speed test method (A) and (B)

QB 577 — Test method for ink characteristic line slope, intercept and flow value (spread diameter)

3 Product Classification

Seven color types are specified: white, medium yellow, green, sky blue, golden red, magenta and black. Their type designations must comply with ZBA 17005. See Table 1 and Table 2.

4 Technical Requirements

4.1 All technical indexes must meet Table 1. Table 1

P01 101

Offset resin white ink

95-110

P02 232

Offset resin medium yellow ink

P02 305

Offset resin green ink

P02 424

Offset resin sky blue ink

P02 623

Offset resin golden red ink

P02 655

Offset resin magenta ink

P02 802

Offset resin black ink

4.2 Performance requirements must meet Table 2. Table 2

Setting speed mim

P01 101

Offset resin white ink

P02 232

Offset resin medium yellow ink

P02 305

Offset resin green ink

P02 424

Offset resin sky blue ink

P02 623

Offset resin golden red ink

P02 655

Offset resin magenta ink

P02 802

Offset resin black ink

5 Test Methods

5.1 Color is tested under GB/T 14624.1.

5.2 Tinting strength is tested under GB/T 14624.2.

5.3 Fineness is tested under QB 559.

5.4 Flow is tested under GB/T 14624.3.

5.5 Film drying is tested under GB/T 14624.4.

5.6 Tack is tested under GB/T 14624.5.

5.7 Setting speed is tested under QB 570.

5.8 Flow value is tested under QB 577.

6 Inspection Rules

6.1 Factory inspection — 6.1.1 Before delivery, the manufacturer's inspection department must inspect the product; it may leave the plant only after passing inspection with a certificate of conformity. 6.1.2 Factory inspection items are color, fineness, flow and tinting strength. 6.2 Type inspection — 6.2.1 Type inspection is required in any of the following cases: a. trial-production type approval for a new product or an old product transferred to another plant;

b. after formal production, when major changes in structure, materials or process may affect product performance;

c. during normal production, once per year;

d. when production resumes after a long shutdown;

e. when the national quality supervision agency requests type inspection. 6.3 A batch is defined as products of the same color made in the same period. Sampling per batch must be no less than (n/2)1/2 [where n is the total number of drums (cans) in the batch], and at least 20 g must be taken from each drum (can); samples must be clean and sealed. 6.4 If any inspection item fails, re-sampling and re-inspection from the same batch are required. The re-inspection result prevails; if failures remain, the batch is judged nonconforming. 6.5 If supplier and buyer disagree and cannot resolve the matter through negotiation, arbitration inspection may be carried out by a product quality supervision and inspection agency.

7 Marking, Packaging, Transportation and Storage

7.1 Offset resin ink is packed in iron boxes or iron drums; iron boxes are then packed in outer cartons. 7.2 The outside of the iron box or drum must be affixed or printed with the trademark, manufacturer, product name, type designation, product standard number, quantity, weight, batch number, production date and the marking 'Do not turn upside down'. 7.4 Under the packaging conditions in 7.1, transport may use vehicles, ships, aircraft and other means. 7.5 During transportation and handling, throwing, dropping and bumping are prohibited to prevent package damage and ink overflow. 7.6 Open-air storage is not allowed; the warehouse must be dry, ventilated, moisture-proof and kept away from fire. 7.7 Under the storage conditions in 7.6, the effective storage period is two years from the date of production.

This standard was proposed by the Quality Standards Department of the Ministry of Light Industry.

This standard is under the jurisdiction of the National Ink Standardization Center.

Drafting organization: Shanghai Ink Plant.

Main drafter: Jin Zhiwu.

From the implementation date of this standard, former Ministry of Light Industry standard QB555-83, Offset Resin Ink, is void.

Source: China Packaging Network (pack.cn); original link: http://news.pack.cn/show-362257.html