Polypropylene (PP) woven bags are widely used for packaging a variety of products, including agricultural produce, fertilizers, sand, chemicals, and more. Their durability, flexibility, and cost-effectiveness make them a popular choice. Here&#;s a comprehensive guide on how to buy and choose the right PP woven bags for your needs.
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PP woven bags are made from polypropylene strips woven in two directions, providing strength and durability. They can be laminated or non-laminated, coated or uncoated, and come in various sizes, shapes, and designs.
PP Woven Laminated Bag
Material Quality: The quality of the polypropylene used directly impacts the bag's strength and durability. Look for bags made from virgin PP material for better quality and longer life.
Weave Density: The weave density (measured in grams per square meter, or GSM) affects the bag&#;s strength. Higher GSM indicates a tighter weave and a stronger bag. Common GSM ranges from 50 to 200, depending on the application.
Bag Size and Shape: Determine the size and shape based on what you&#;ll be storing or transporting. Standard sizes range from small (25 kg capacity) to large ( kg capacity) bags. Custom sizes are also available.
Coating and Lamination: Coated or laminated bags offer additional protection against moisture, dust, and other environmental factors. If your products need protection from moisture, opt for laminated or coated bags.
Bag Features: Consider features like UV protection, anti-slip surface, liners, and printing options. UV protection extends the life of bags used outdoors. Liners can add extra moisture protection, while printing can be used for branding and information.
Closure Type: Bags can have different closures like open-top, valve-top, or with drawstrings. Choose the closure type that best suits your filling and sealing requirements.
PP Woven Laminated Bag
Identify Your Needs: Clearly define what you need the bags for. Consider the type of product, weight, storage conditions, and handling requirements.
Research Suppliers: Look for reputable suppliers or manufacturers. Check their reviews, product range, and quality standards. You can find suppliers online or through industry trade shows and networks.
Request Samples: Before placing a bulk order, request samples from potential suppliers. This allows you to test the bags&#; quality, durability, and suitability for your products.
Evaluate Pricing: Compare prices from different suppliers. Ensure you&#;re getting value for money by considering the bag&#;s quality, features, and the supplier&#;s reliability.
Check Certifications: Ensure the supplier complies with relevant industry standards and certifications. This guarantees that the bags meet quality and safety requirements.
Negotiate Terms: Discuss payment terms, delivery schedules, and any other specific requirements you may have. Clear communication ensures a smooth transaction.
Place Order: Once satisfied with the samples and terms, place your order. Make sure all specifications are clearly mentioned in the order to avoid any discrepancies.
Experience and Reputation: Choose a supplier with a proven track record and positive customer feedback. Experienced suppliers are more likely to provide high-quality products and reliable service.
Product Range: A supplier with a wide range of products can offer more options and cater to specific needs better. They may also provide customization options.
Customer Support: Good customer support is crucial for addressing any issues or concerns. Ensure the supplier is responsive and helpful.
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Sustainability Practices: If environmental impact is a concern, look for suppliers that offer eco-friendly options or have sustainable manufacturing practices.
After-Sales Service: Consider the supplier&#;s after-sales service, including return policies, warranty, and support for any potential issues that might arise.
Choosing and buying the right PP woven bags involves understanding your needs, researching and evaluating suppliers, and considering various factors like material quality, bag features, and cost. By following these guidelines, you can ensure that you select the best PP woven bags for your specific requirements, providing effective and reliable packaging solutions for your products.
Global Recycling Standard (GRS) is an international, voluntary product standard established by Control Union Certifications (CU) for recycled fibers. It sets requirements for third-party certification for recycled materials, supply chain management, social and environmental practices, and chemical restrictions.
What is GRS Certification?
The Global Recycling Standard (GRS) is a third-party certification system for recycled fibers established by Control Union Certifications (CU). It was first introduced by the Dutch Control Union in January , with a focus on recycling post-consumer textile waste. In , the copyright of the standard was transferred to the Textile Exchange, a global textile trade organization, which authorized third-party certification bodies to conduct GRS certification.
The GRS certification system covers five aspects: environmental protection, traceability, recycled content, social responsibility, and general principles. The certificate is valid for one year.
The goal of GRS is to provide a tool for consumers (brands and end-users) to make informed decisions to reduce the harmful impact of production on humans and the environment. It also aims to ensure that the materials in the final product are actually recycled and sustainable, promote innovation, and address quality issues of recycled materials.
What are the certification requirements?
1. Applicable products
The GRS certification applies to textile raw materials, accessories, finished products, and other products with 20% or more recycled content, such as plastic pellets, convenience bags, metals, sunglasses, cosmetic packaging, automotive interiors, automotive plastic parts, and non-woven products.
2. Recycled content ratio
The proportion of recycled materials in the product or packaging, calculated by weight. Only pre-consumer and post-consumer materials are considered as recycled content.
3. Use of GRS logo & label and special statements
The production of products with a recycling ratio of &#; 50%.
What are the mandatory conditions after application?
If a company wants to apply for GRS certification, its upstream suppliers of recycled raw materials should also have GRS certification. When applying for GRS certification, suppliers should provide Scope Certificate (SC) and Transaction Certificate (TC), and Reclaimed Material Supplier Agreement and Reclaimed Material Declaration Form for the reclaimed materials at the supply chain source when necessary.
What does the certification audit mainly focus on?
The GRS certification audit mainly focuses on four aspects: product quality system, social responsibility system, environmental management system, and chemical management system.
The requirements for recycled content and supply chain management focus on tracing the entire production process through documentation.
Social responsibility requirements are important and include child labor, discrimination against women, and overtime work. Companies that have successfully passed BSCI, SA, GSCP, and other social responsibility audits may be exempted from further evaluation by the certification body.
Environmental requirements are crucial and require participating companies to have a high level of environmental awareness. Regular testing of factory wastewater is necessary.
Chemical requirements mandate the use of MSDS and ensure that GRS products do not cause unnecessary harm to the environment or workers during production.
What is the certification process?
1. Application and contract.
After reviewing the application form, the certification body will provide a detailed budget in the contract. The applicant should confirm and sign the contract promptly upon receipt.
2. Registration.
The certification body will register the applicant and issue a registration number upon receiving the signed contract.
3. Payment.
The applicant must pay the audit fee after receiving the budget contract.
4. Audit.
After ensuring that the necessary system documents are in place, the certification body will arrange auditors to conduct an on-site audit and issue a formal report within two weeks after the audit.
5. Certificate issuance.
The certification body should issue the certificate within two weeks after receiving the formal report. If the audit does not meet the requirements, the certification body should take appropriate measures and correct all non-conformities within the specified time.
Certification fees and organizations
The audit fees for GRS certification vary depending on the type of company and range from 13,000 to 23,000 RMB. Certification bodies provide quotes based on the production process of the factory, with the highest price for the wet process.
Currently, the Textile Exchange authorizes third-party certification bodies to conduct GRS certification audits. The authorized certification bodies include CU, ITS, IDFL, TUV, ESTS, and others.
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