Talking about the Process Control of Printing Enterprises

In the production process, there are six main factors affecting product processing procedures and quality, namely, people, machines, materials, methods, environment and inspection. These factors have an impact on the processing of printing products and cause quality fluctuations, which are called process quality of printing companies. Limiting these fluctuations to a certain range is called process quality control. This article puts forward some opinions on the roles and requirements of various factors and the characteristics of the printing companies for discussion.

one person

In print production, people are the most important, most critical and most active factor. If there is no "Quality First" guiding ideology, there is no high sense of responsibility and dedicated and dedicated work attitude, even the best printing equipment and materials, it is difficult to print high-quality printing products. Therefore, we must fully mobilize the subjective initiative of employees to play their role in quality production. At present, the domestic printers generally do not have high degree of automation, and their technologies and processes are backward. The sense of responsibility of operators is of great significance to product quality.

Second, equipment

Products are processed by people using machine equipment and production tools. Many print product quality problems are caused by the outdated printing equipment and low accuracy. In order to eliminate or minimize these effects, printing companies should improve the system and responsibility of equipment management. In order to better control the factors that affect the fluctuation of the process quality of the equipment, it is recommended to do several things:

1, the selection of equipment

Printing companies must combine their own specific conditions and product requirements in the purchase of equipment, and make reasonable choices. When selecting and configuring, consider the quality, cost, efficiency, and utilization of the device. We must not only consider reducing investment without regard to quality, and we must not only consider quality regardless of cost and availability of equipment, and blindly select expensive, large, and rare equipment. According to the characteristics of the factory's products and the direction of development of the appropriate selection of appropriate equipment, so that the selected equipment can be fully utilized. Some enterprises have improved their overall capabilities and increased their market competitiveness through technical innovation and the introduction and allocation of equipment. This has enabled enterprises to develop rapidly: Some enterprises have not only failed to achieve results after technological transformation, but have instead invested in technological innovation. With the blind configuration of equipment, it was caught in the dilemma of more heavy liabilities. The reason was due to the unreasonable selection and configuration of equipment.

2, the use of equipment

Correct use of printing equipment is an important factor in ensuring the quality of printed products. In the production process, the operator must strictly implement the safety operation rules and maintenance rules, make a record of the operation of the equipment, find out the abnormal situation, report it in time, and conduct maintenance. If a major fault is discovered, it should be reported to the workshop to notify the equipment department. The operator must be trained to be familiar with the equipment's performance and operating methods, and continue to learn to improve the operating skills.

3, equipment maintenance

Careful maintenance and repair work is an important measure to maintain the accuracy and good technical status of printing equipment. Maintenance and repair are mainly: daily inspections, primary and secondary maintenance and periodic inspections and maintenance according to plan. Such as the regular pre-inspection equipment pre-repair, can reduce the occurrence of failure, regular one and two maintenance can maintain the accuracy of the equipment, daily check point by point for daily inspection and lubrication, can maintain the equipment in good condition. In addition, the spare parts work of the equipment must also be done to ensure that the need for equipment maintenance is met in a timely manner.

4, equipment management account

The equipment management account is an important basis for equipment quality information, quality control and improvement of equipment quality. The printing equipment quality account includes equipment manufacturing date, manufacturer, machine model, serial number, date of use, use department, maintenance record, fault condition, equipment component life, equipment accident reason, economic loss and accuracy change. If the relevant information is analyzed and processed, the trouble-free operation cycle can be improved and the accuracy and good technical state of the printing equipment can be maintained.

Third, the material

The quality of printed materials directly affects the quality of printed products. Therefore, strict control must be exercised in all aspects such as material ordering, factory acceptance, warehousing, storage, picking and feeding, marking and transplanting, and material use.

Fourth, the method

Whether the operation method is scientific and reasonable or not is also a major factor in the quality of printed products. General products or general processes can follow the general operating methods. However, for special, high-demand and complicated products, it is necessary to formulate a complete process specification (or work instruction) to guide production. The job instructions should have the correct operating procedures and the operating procedures in each program. The job instruction book should focus on ensuring the production of qualified products with stable quality and satisfactory customers.

V. Environment

The impact of the environment on product quality generally has the following aspects:

1, living environment

To do a good job among employees, between leaders and leaders, between teams and even among family members, so that employees have a comfortable living environment.

2, working environment

The printing shop shall be subject to fixed management, roads shall be unimpeded, clean and hygienic, and materials, semi-finished products, work tools and other items must be stacked in an orderly and orderly manner. Always pay attention to the preparation, rectification and cleaning of the production site.
The temperature, humidity and air temperature of the offset printing workshop, the opening section, the paper warehouse, and the places where the printed matter and semi-finished products are stacked. Dust and other conditions have certain requirements. The quality of the environment in these places will have a direct impact on product quality, especially worthy of attention.

3, balanced production

Balanced production has a positive and important role in stabilizing the quality of printed products, reducing production costs, and timely delivery of general quality. In terms of production scheduling, work plans should be properly arranged, and preparations for raw materials, equipment and various technologies should be fully implemented to achieve balanced production and maintain normal production order. Ensure the stability and improvement of product quality.

Six, inspection

Inspection is an activity that measures, tests, measures, and compares the characteristics of a product or service with specified requirements to determine compliance.

It is crucial to prevent mistakes and missed inspections in the inspection of print quality. Misdetection refers to errors in the inspection process, leading to errors in the inspection conclusions. Missed inspection means that the inspection process or inspection item was missed. Mistakes and missed inspections are caused by technical errors, missed inspections, management errors, and missed errors.

In order to reduce and prevent the occurrence of mistakes and missed inspections, we must take targeted measures in accordance with the actual situation of enterprises, strengthen the quality and technical education and training of quality inspectors, standardize the management of quality inspections, participate in full participation, and do a good job in quality inspections. Mutual inspection, joint inspection of the process and the upper and lower processes, so that the occurrence of this unfavorable situation is fundamentally eliminated, and the normal control of the process quality is realized.