Product Description and Manufacturing Process of Non woven Bag
1、 Product Description
（1） Core positioning
The
non-woven bags produced by our factory are a new type of packaging carrier that integrates environmental protection, practicality, and aesthetics. They are made of high-quality non-woven fabric as the core material and are finely processed to replace traditional plastic bags and paper bags. They are widely used in various scenarios such as commercial
Promotion, gift packaging, and daily shopping, and have both environmental value and brand promotion functions.
（2） Material characteristics
1. Raw material quality: PP (polypropylene) non-woven fabric with a weight of 100-200g/㎡ is selected, and some high-end models use PLA (polylactic acid) biodegradable non-woven fabric. The raw materials have passed environmental testing and have no odor or harmful volatile substances, meeting the national GB/T 22876-2014 standard.
2. Core advantages:
◦ Environmental friendliness: PP non-woven fabric can be reused more than 50 times, with a short natural degradation cycle (about 3-5 months) after disposal, while PLA is completely biodegradable and does not pollute soil and water sources;
◦ Durability: High tensile strength, with a load-bearing capacity of 5-15kg (adjusted according to weight and process), wear-resistant, not easily torn, and able to maintain good toughness in wet conditions;
◦ Breathability: The fabric has uniform breathable holes to prevent internal items (such as food and clothing) from getting damp and moldy;
◦ Easy to maintain: can be washed and wiped, does not deform or fade after drying, and is easy to clean.
（3） Product specifications and functions
1. Conventional specifications:
◦ Size: Customizable (common basic models: 30 × 40 × 10cm, 35 × 45 × 12cm, 40 × 50 × 15cm);
◦ Thickness: Corresponding to the weight of the raw material, 100g is suitable for light packaging, 150-200g is suitable for heavy load-bearing;
◦ Styles: Handbag (flat/drawstring), folding bag (can be stored as a small bag), vest bag, three-dimensional bottom bag, etc., supporting personalized design.
2. Additional features:
Printing adaptation: Supports full-color printing, hot stamping/silver, embossing and other processes, with clear patterns, bright colors, and less likely to fall off;
◦ Practical accessories: Zipper, Velcro, inner bag, reinforced handle, hanging rope, etc. can be added to enhance convenience of use;
◦
customized services: Support adjusting materials, sizes, styles, and printing content according to customer needs to meet different scenarios such as commercial promotion, event gifts, and daily shopping needs.
（4） Applicable scenarios
Commercial retail: shopping packaging for supermarkets, convenience stores, clothing stores, cosmetics stores, etc., which can print brand logos and have both practicality and publicity;
• Event gifts: Giving gifts to corporate annual meetings, exhibitions, promotional activities, etc. to convey environmental protection concepts and enhance brand image;
• Daily use: Home shopping, outdoor travel,
book storage, miscellaneous sorting, etc., replacing plastic bags, environmentally friendly and durable;
• Public welfare promotion: environmental protection public welfare activities, government publicity and promotion, and other carriers to convey the concept of green living.
2、 Production process
（1） Production process
1. Raw material preparation: Select PP non-woven fabric or PLA biodegradable non-woven fabric rolls that meet the standards, screen the raw materials according to product weight and color requirements, and ensure that the raw materials are free of impurities and have uniform thickness.
2. Cutting process:
Using a computer numerical control cutting machine, precise cutting is carried out according to preset product dimensions and pattern drawings to ensure consistent cutting size and neat edges of the cut pieces;
After cutting, sort and organize the cut pieces to remove burrs and defects, ensuring the quality of the cut pieces.
3. Printing process:
Choose the appropriate printing process based on customer needs, common processes include:
▪ Screen printing: suitable for simple patterns and text, with full colors, low cost, and strong wear resistance;
▪ Heat transfer printing: suitable for complex patterns and gradient colors, with clear patterns and bright colors, suitable for multiple color combinations;
▪ Digital printing: suitable for small batches and personalized patterns, with fast printing speed and high pattern restoration;
▪ Hot stamping/silver process: adding metallic texture on the basis of printing to enhance product grade, suitable for high-end gift bags.
▪ After printing, dry the ink to ensure complete solidification and avoid pattern peeling and smudging.
4. Sewing/heat sealing process:
◦ Sewing process: Using industrial sewing machines and high-strength polyester thread, the cut pieces are spliced and sewn, including handle fixing, bag body splicing, bottom reinforcement, etc. The stitches are uniform and firm to ensure the load-bearing capacity of the bag body;
◦ Heat sealing process: Suitable for some non-woven fabric materials, the edges of the cut pieces are hot melted and bonded through a high-temperature heat sealing machine, with no stitch marks and good sealing performance. It is suitable for bundling pockets and waterproof products;
◦ Double reinforcement treatment is applied to key areas such as handles and bottoms to enhance product durability.
5. Accessory installation:
◦ If accessories such as zippers, Velcro, inner bags, and hanging ropes need to be installed, they should be installed synchronously during the sewing/heat sealing process to ensure that the accessories are firmly fixed and used smoothly;
◦ Inspect the installed accessories to avoid issues such as zipper jamming and insufficient adhesion of Velcro.
6. Forming and sorting:
◦ Shape and iron the finished product to ensure that the bag body is flat and wrinkle free;
◦ Remove excess threads and impurities, and thoroughly clean the product.
7. Quality inspection:
◦ Appearance inspection: Check whether the product size, pattern, printing pattern, and stitching/heat sealing meet the requirements, without defects or damage;
◦ Performance testing: Sampling for load-bearing testing (setting load-bearing standards according to product specifications), wear resistance testing, and water washing testing to ensure that product performance meets standards;
◦ Qualified products are sorted and counted, while unqualified products are reworked or scrapped.
8. Packaging and outbound:
◦ Independently package or batch package qualified finished products to avoid wear and contamination during transportation;
◦ Pack and
label according to customer order requirements, and arrange logistics delivery.
（2） Technological advantages
1. Precision production: using computer numerical control cutting and automated printing equipment to ensure consistent product size, accurate patterns, and strong stability in mass production;
2. Durable and sturdy: Double reinforcement is applied to key areas, and the stitching/heat sealing is firm and reliable, enhancing the product's load-bearing capacity and service life;
3. Environmental compliance: Environmentally friendly ink and auxiliary materials are used in the production process, with no wastewater or exhaust gas pollution, in compliance with environmental production standards;
4. Personalized adaptation: Supports multi process printing and multi style customization, and can flexibly adjust the production process according to customer needs to meet different scene requirements.
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