About powder box quality control items and test methods

Design function quality control

1. Open box force test

The open box force refers to the strength of the consumer to open the compact, which is roughly divided into two types: one is to open the force with the front button, the card shoot, the button structure, and the force is expressed by the thrust; the other is to open the front. The force of the button and the bottom of the cover directly to the toner cartridge is expressed by the pulling force. Generally, the opening force depends mainly on the interference fit of the hook. The angle of the hook is an important factor affecting the opening force. Of course, the opening force has a considerable relationship with the material of the container.

2. Drop test

Under normal circumstances, the drop height is set according to the material or size of the toner cartridge. The compact and fragile powder box is vertically dropped to a hard surface at a height of 70 cm and no part separation and cracking is acceptable (the toner cartridge is considered normal). ). Drop testing is closely related to product and mold design. Care should be taken to avoid stress; the robustness of the part is related to the material chosen.

3. Compression test

The compression test mainly tests the pressure resistance of the toner cartridge in the closed state, and is related to the toughness of the selected material and the product structure.

4. Rear button (hinlet) strength

The back button (hinlet) strength refers to the maximum strength that the back button portion can withstand when the container is in the open state, and has a large relationship with the plastic thickness and stress around the back button.

5. Rear button (hinlet) tightness

Rear button (hinge) The tightness refers to the smoothness of the rear button portion when the toner cartridge is opened, and whether the mirror cover can stay within the angle of use. It is directly related to the diameter of the button on the back of the cartridge, the material, and the pinhole size of the component assembly. The design should consider the interference between the nail and the hole to ensure that the back button (hinge) is suitable for tightness.

6. Component assembly fastness

Component assembly robustness means that a two-piece assembly (supersonic welding or snapping) of the toner cartridge can be maintained in a normal state after being transported and used by the consumer.

Decoration performance quality control

In order to attract the attention of consumers, most medium and high-grade powder boxes will be decorated with different processes. Common processes include printing , electroplating, bronzing, etc. The performance test of these processes has attracted the attention of packaging companies.

1. Decorative adhesion

Decorative adhesion is to ensure that the decorative layer will not fade after being transported and used.

2. Wear resistance test

Wear-resistance testing refers to the simulation of random friction phenomena and mechanical vibrations that occur in consumer handbags.

3. Light resistance test

Lightfastness test refers to exposing the compact to a simulated radiation source or under the fluorescent light reflected from the display cabinet. The color change of the compact does not exceed the specified color requirements.

4. Odor test

A powder box using materials such as surface decoration paints, inks, etc., once it is not completely cured, it is easy to produce an unpleasant odor under the action of heat.

Resist the quality control of the logistics environment

The logistics environment is a factor that is generally ignored in the development and design stage of the toner cartridge. If the design strength of the powder box structure and the environmental impact resistance of the transport packaging material are less than the force of the logistics environment factor, the toner cartridge will be damaged; otherwise, it may be Causes the toner cartridge to be over-packaged . In order to achieve a balance point in actual operation, it is recommended to analyze according to logistics environmental factors.

The logistics environment factors mainly include two aspects: one is the drop impact during transportation, the vibration during the land (air) transportation, the stacking during storage, the environmental temperature and humidity and pressure changes during long-distance transportation, etc. The effect of low temperature environment on the performance of toner cartridges, especially plastic compacts.

　　 The above content is selected from the 4th issue of “ Printing Technology ·Packaging and Decoration” by Keyin Media in 2012. For more journal content, please pay attention to the journal channel.