Effective quality inspection control of base paper

Establish the relevant system and workflow of paper inspection

First, the company should establish a complete set of paper procurement and acceptance management system. These systems include “Receipt of Raw Material”, “Standards and Methods for Inspection of Raw Material Quality”, Raw Material Inspection Report, “Control Procedure for Nonconforming Products”, “Process for Controlling the Use of Raw Materials” and Quality Record Control Procedures, etc. Required management control file. The quality inspection department, relying on the contents of the documents submitted for advancement, conducts the necessary inspections for each batch of original paper purchased by the company.

Paper inspection workflow

Base paper - company warehouse - notice quality inspection department - quality inspectors carry out random inspections based on the delivery note and records - after inspection, inspection report form is opened - the warehouse receives the report form and arranges the base paper for storage - the warehouse manager checks and checks at the time of storage - The production department uses an in-process inspection and records - the quality inspection department summarizes the quality inspection records of the base paper. If the problem of unqualified quality is found after the inspection, it shall be reported to the relevant competent authority in accordance with the “Control Procedure for Nonconforming Products” and processed and reported to the relevant competent authority in a timely manner.

Several key control elements for inspection and warehousing acceptance of raw paper before entering the warehouse

The inspection of raw materials should be conducted in time before the original paper unloader. Because, if the paper is rejected after the unloading, it will be rejected or returned. This will lead to unnecessary work such as reloading the paper. This results in repetitive work waves; appearance inspection (visual inspection method). Check whether the content of the production label on the paper roll meets the purchasing requirements. Check whether the paper roll is damaged. If damage is found, calculate the breakage and indicate in the inspection record. Check whether the edge of the paper roll is clean and tidy. Circular concentricity with or without deformation and other major basic appearance indicators.

Bulk sampling ratio. According to the normal inspection regulations, batch sampling inspection is performed to check whether the physical indexes of the paper are up to the standard. When the quality result of the sampling inspection is relatively unstable, the proportion of the sampling inspection should be increased in the specified sampling quota. This batch of each piece of paper is sampled and tested.

Warehouse warehouse acceptance. Warehouse receipt of the receipt of quality inspection department after the Taiwan unit "Raw Material Inspection Report, when the material is put into the warehouse should also carry out the necessary inspection and acceptance of the original paper (consolidation of some of the material appearance defects in the sampling can not Found that each item must be inspected when entering the warehouse and carefully check whether the label content on each thick paper corresponds to the delivery note. Check the weight of the part of the paper roll for checking. Carefully check the appearance of each paper and notice any problems. Quality inspectors, in order to carry out the necessary and necessary treatment, avoid unnecessary loss of the company due to the timely detection of defects in the base paper.

Inspectors will inevitably encounter some unusual problems when inspecting base papers. They should report to their superiors in a timely manner so that abnormal problems can be effectively dealt with. For example, some papers that are overweight will not affect the production quality of the products, but they will cause Related issues such as wastage of materials used in production. The normal treatment method is to take corresponding measures such as taking deductions for compensation.

Tracking of raw paper in the production process Screen printing of the base paper in front of the library is a hard indicator of some physical properties, and it can only detect several layers of the surface of the paper roll when it is inspected. Some paper quality defects need to be highlighted during the production process. For example, the paper often encounters uneven paper moisture, uneven paper roll tension, bad connector connections, and severe drying of the paper web. Problems, these adverse problems will have a certain impact on production and product quality. In order to solve and effectively prevent the occurrence of undesirable problems, the production and quality control departments need to cooperate with each other to jointly complete the quality inspection of the paper in the process.

The production department shall establish a "report on the use of base papers, and require the production and use of process personnel to record the production and use of each base paper. The record sheet shall be filled with the label data of the base paper, that is, the serial number, name and specifications, and the quality conditions at the time of use ( Details of bad quality problems, utilization of paper usage, and other important contents.

During the production process, the quality inspection department shall perform inspection and management of the base paper according to the “Procedures for Controlling the Use of Raw Materials”, and the quality inspection personnel shall perform on-site sampling and retention of the bad base paper during the production process, and if necessary, carry out various physical indicators. Retesting and recording. One of its purposes is to leave a basis for dealing with related quality issues with the supplier, and secondly, to establish a sound quality inspection record for the base paper. At the same time, it needs to be in the various production stages of the product. The most relevant issues caused by the relevant product are recorded.

Summarization and evaluation of quality inspection records of raw paper Quality inspection department shall regularly organize and summarize all inspection records of raw papers. Establish monthly quality reports for all types of raw materials. Quality records for same-grade, same-type but different-brand quality papers Contrast the most. Make a corresponding quality comparison chart, regularly analyze the quality inspection record data accumulated, and select out the same quality paper in the same type of paper to provide a basis for the company to purchase cost-effective raw materials. .

The data in the check record record of the base paper can play a good role in the carton production process design. Through the analysis of the paper grain inspection data, we can find the most suitable paper for the dry process and production equipment. The paper's design collocation provides good technical parameters, realizes the effective control of the main production cost of the product, guarantees the excellent production quality of the product, and finally achieves the purpose of improving the economic efficiency of the company.