The visual inspection process of production lines for products such as sanitary napkins, diapers, and nursing pads

What is the visual inspection process in a production line?

Visual inspection, also known as visual examination, is the process of comprehensively and meticulously inspecting and evaluating products, equipment, or manufacturing processes in the production lines of items such as sanitary napkins, diapers, and nursing pads. This inspection is conducted either directly by the human eye or with the assistance of tools.

Preliminary Preparation

  1. Tool and Equipment Inspection: First, visual inspectors need to inspect the visual inspection tools being used, such as measuring tapes, lighting equipment, record sheets, etc. These tools form the foundation of visual inspection operations, and their accuracy directly affects the precision of product inspection.
  2. Area Cleaning: The inspection area must be kept clean, free of debris and dust. This helps visual inspectors to clearly observe the products and avoid misjudgments caused by environmental factors.
  3. Understanding Product Standards: Before commencing the visual inspection, inspectors need to have a clear understanding of the product standards and customer requirements for the current production batch. This includes product dimensions, appearance quality, functional characteristics, etc., to ensure the accuracy and consistency of the inspection.

Visual Inspection Operation

  1. Product Conveyance: Products to be inspected are conveyed to the inspection area either automatically or manually via the production line. Visual inspectors ensure that products enter the inspection area at the specified speed and sequence for effective inspection.
  2. Exterior Inspection: Visual inspectors use lighting equipment to carefully examine the appearance of the products, checking for stains, damages, deformations, etc. They also inspect the printing quality and correctness of labels.
  3. Dimension Measurement: Using tools such as measuring tapes, visual inspectors measure the key dimensions of the products to ensure they meet standard requirements. This includes measurements of length, width, thickness, and other critical parameters.
  4. Functionality Testing (if applicable): For certain sanitary products with special functions such as quick-drying, antibacterial properties, etc., visual inspectors may need to conduct functionality testing to ensure product performance meets standards.

Quality Judgment and Recording

  1. Quality Judgment: Based on product standards and inspection results, visual inspectors determine whether the products are qualified. For non-conforming products, detailed records of the issues are required, and they are classified accordingly.
  2. Recording and Feedback: Visual inspectors record the inspection results of each batch, including the number of qualified and non-conforming products and specific issues identified. This information is crucial for monitoring and improving the production line. Additionally, they need to provide timely feedback on the inspection results to relevant departments for adjusting production parameters or implementing other corrective measures.

Non-conforming Product Handling

  1. Isolation and Labeling: For non-conforming products, visual inspectors need to isolate them from the qualified products and clearly label them to prevent confusion.
  2. Root Cause Analysis: Visual inspectors, in collaboration with the production department, analyze the reasons for non-conforming products to identify the root causes. This helps improve production processes and quality control methods, reducing the occurrence of similar problems.
  3. Corrective Measures: Based on the nature and severity of non-conforming issues, visual inspectors and the production department jointly decide on the appropriate corrective measures. Possible actions may include rework, scrapping, etc. After handling, a re-inspection is conducted to ensure the issues are resolved.

Why Conduct Visual Inspection Operations?

  1. Through comprehensive visual inspection of products, manufacturers can promptly identify defects and issues such as stains, damages, deformations, etc., ensuring that products meet quality standards. This helps improve overall product quality, prevent defective products from entering the market, and maintain the company’s reputation and brand image.
  2. By conducting visual inspection operations, companies can promptly detect problems on the production line and take measures for improvement, avoiding waste and losses during the production process. Additionally, visual inspection operations ensure stable operation of the production line, increasing production efficiency and shipment qualification rates, thereby saving costs and increasing profits for the company.
  3. Through rigorous inspection of the appearance and functionality of new products, visual inspectors can provide feedback and suggestions on product quality to the company, helping the company continuously improve product design and manufacturing processes to meet market demands and customer expectations.
  4. As producers of hygiene products, ensuring product quality and safety is a fundamental responsibility of the company. Through visual inspection operations, companies can ensure that the sanitary products produced meet relevant standards and regulatory requirements, safeguarding consumer health and rights.
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