Inpack UV Resistant Stand-up Kraft Paper Bag for Food Packaging¹

Product DescriptionProduct DescriptionPremier Kraft Paper Bags Supplier | INPACK Bags & PouchesKraft paper bags are a versatile and eco-friendly packaging solution known for their natural, premium appearance and durability. They are often laminated with one or more film layers and can be designed with a bottom gusset to stand up on a shelf, making them a leading choice in the sustainable packaging market.*All food-contact linings and materials used are food-grade, FDA-approved, and BPA-free.*A wide range of styles are available, including stand-up pouches, flat bottom bags, and traditional shopping bags.*Features like degassing valves, tin-ties, clear windows, and handles are available to enhance functionality.*When laminated with barrier films, these bags become puncture-resistant, heat-sealable, and offer excellent moisture-proof and leak-proof properties.OUR ADVANTAGE ON KRAFT PAPER BAG IS:* Custom print with logo up to 10 colors, matte and spot glossy available* MOQ from 200 pcs for a start with digital print* Free existing sample delivery for reference* The shortest delivery time for printed pouches can be less than 7 daysWelcome inquiry to INPACK, know more about our stand-up pouches.SEO KEYWORDS* Kraft Paper Bag / Brown Kraft Paper Bag / White Kraft Paper Bag / Kraft Paper Shopping Bag* Kraft Paper Cement Bag / Kraft Paper Shopping Bag / Kraft Gift Paper Bag / Handle Kraft Paper Bag* Brown Kraft Paper Bag / Kraft Paper Shopping Bag / Kraft Paper Gift Bag / White Kraft Paper Bag * Kraft Paper Packaging Bag / Kraft Paper Food Packaging Bag / Coffee Kraft Paper Bag / Packaging Kraft Paper BagSpecificationBag typesStand Up Pouch, Flat Bottom Pouches, Three Sides Sealed Bag, Side Gussets Bags, Quad Seal Bags, Back Center Sealed Bag, Spout Pouch,Zip-Lock bag, Slider bag, Flat Open Bag, Pillow Bag, Printed Roll Stock Film Vest Bag, 8 Sides Sealed Bag, Nozzle Bag,Retort Pouch, Vacuum Bag and so onBag usagesTea and Coffee Packaging; Nuts and Snack Packaging; Chocolate and Candy Packaging; Pet Food Packaging; Dried Food Packaging; Frozen Food Packaging; Salt, Sugar and Spices Packaging; Rice and Seed Packaging; Personal Care Packaging; Clothes Packaging; Trash Packaging; Waste Packaging; Pet Poop Packaging; Breast Milk Bag; Milk Storage Bag;Cling Film; Medical Waste Bag; Shopping Paper Bag; Gift and Present Packaging; Tobacco Packaging; Lotion Packaging and so onMaterialTwo layer:NY/PE,PET/PE,etc.Three layer:PET/AL/PE,PET/PET/PE,PET/NY/PE,PET/VMPET/PE, OPP/AL/PE, OPP/VMPET/PE.Four Layer: PET/AL/NY/PE,PET/AL/PET/PE, OPP/AL/PET/PE, etc.Kraft PaperThicknessAs your request, from 20micron to 200micronsSizeAll sizes are available, customized.PrintingGravure and digital printingPackingcarton size(cm):55X40X30;48X33X27 or customizedDelivery time15-25 days after deposit.CertificationISO9001, SGS, FDAINPACK PACKAGINGA Kraft paper bag refers to a packaging solution made from durable and eco-friendly Kraft paper. It can be designed in many formats, including a stand-up pouch style that is able to stand upright on its bottom to allow for excellent display, storage, and use.In this buyer's guide, you'll learn numerous aspects surrounding the Kraft paper bag manufacturing process and other related details.Step 1: Determine The Intention Of The Kraft Paper BagThe first step in the manufacturing process of a Kraft paper bag is establishing its actual use.In essence, this involves figuring out the exact purpose, whether it is designed for preserving, protecting, or storing the specific product.Once you determine the actual intention, it becomes easy to figure out other elements surrounding the design and construction of the Kraft paper bag.Ideally, figuring out the actual intention of this packaging component allows you to determine the right material construction. This includes deciding if a protective inner lining is needed for moisture or grease resistance, or if a barrier film lamination is required.Moreover, you'll also determine the right design, size, and format of the Kraft paper bag you are making, whether it is a stand-up pouch, a flat-bottom bag, or a simple gusseted bag.Step 2: The Design ProcessThe design process for creating a Kraft paper bag begins with defining its specific purpose, followed by using appropriate design software to develop a conceptual representation. Mastery of the software is essential to ensure the design aligns with the intended functions and leverages the natural, earthy aesthetic of Kraft paper. During this phase, it's crucial to consider the bag's capacity, paperweight (GSM), and format to optimize its effectiveness.The choice of features—such as re-sealable zippers, tin-ties, clear windows, or tear notches—is also determined here and is influenced by the nature of the contents. For example, a tin-tie is ideal for coffee or tea bags, allowing for easy re-closing, while a clear window is perfect for showcasing artisanal products like granola, snacks, or baked goods.Additionally, understanding the target market is pivotal. Customizing the Kraft paper bag to meet customer expectations, particularly the demand for sustainable and eco-friendly packaging, not only enhances market appeal but also helps evaluate the potential capital and return on investment. This ensures a more successful launch, especially for brands in the organic, natural, and artisanal sectors.Step 3: Finding The Right Material Construction For Your Kraft Paper BagThe choice of material construction for a Kraft paper bag is crucial for its functionality, durability, and efficiency. While the defining outer layer is Kraft paper, these bags often consist of different laminated material structures specifically designed to protect contents from elements like odor, moisture, oxidation, and light.The best structure depends on the product's properties and customer preferences. For instance, laminating the Kraft paper with an aluminum foil layer is ideal for providing maximum moisture and oxygen barriers for products like coffee. This layered approach enhances protection and durability, making the bag suitable for a wide range of applications while maintaining a natural, eco-friendly appearance.OUTER LAYER MATERIALThis is the defining layer of the bag, consisting of Kraft paper, which provides a natural, premium finish designed to attract the customer's attention.It serves as the primary printing surface, holding product details and brand messaging, and its tactile, earthy texture strongly appeals to consumers looking for sustainable or artisanal products.Common options include traditional Brown Kraft Paper for a rustic look or White Kraft Paper for a cleaner, more modern aesthetic with vibrant color printing.MIDDLE LAYER MATERIAL (Optional but common for high performance)*The type of material for the middle layer of a Kraft paper bag often varies based on the specific barrier requirements of the content.*This layer is laminated between the outer Kraft paper and the inner sealant to add protection that paper alone cannot provide.*The commonly preferred options include: aluminum foil, metalized PET film (VMPET), and polyethylene terephthalate (PET).*These materials offer different barrier capabilities.For instance, metalized film is ideal for providing good protection from moisture and light for fast-moving products.Aluminum foil, on the other hand, offers the highest possible barrier and is more durable, making it the best choice for sensitive products like coffee and tea, which it can protect for at least 20 months.PET is often used to add stiffness and a smooth surface under the Kraft paper.INNER LAYER MATERIALIt forms an integral basis of a laminated Kraft paper bag since it is the part that comes in direct contact with the content.Therefore, it is a vital layer, especially if the pouch is used for packaging food and beverage products.Often, the ideal material for this inner layer is linear low-density polyethylene (LLDPE).Other than being an FDA-approved material, it facilitates easy heat-sealing of the bag and makes the product hard to tamper with.Ideally, this is fundamental since it enhances the product's shelf life and customers' confidence when buying the commodity.Step 4: Selecting a Suitable Design For Your Kraft Paper BagThe design of a Kraft paper bag is primarily determined by the content being packaged and the target market, often with a strong focus on conveying a natural, artisanal, or eco-friendly brand image. Features like re-sealable zippers, tin-ties, clear product windows, or tear notches should align with the product type and customer preferences. For items like coffee or baked goods, a bag with a tin-tie or zipper facilitates easy resealing.Customization is essential to meet specific customer needs and help products stand out on crowded shelves. The shape and size should be distinctive, and incorporating a clear window can showcase the quality of the product inside, enhancing consumer appeal. The choice between natural brown or white Kraft paper will also significantly impact the visual design and how printed colors appear.Ultimately, the design should allow customers to easily open the bag and access the contents, while also facilitating resealing for later use. This most often involves integrating ziplocks or tin-ties to ensure the safe and fresh storage of the product after its initial use.Step 5: Making a Kraft Paper BagThe manufacturing process of a Kraft paper bag, especially a laminated one, involves several key steps. It starts with the raw Kraft paper material, which is printed with custom logos, colors, and designs. This printed paper is then often laminated with one or more functional film layers to add barrier properties and heat-sealability.The laminated material is then shaped. For a stand-up pouch style, this involves forming a W-gusset bottom, which is essential for the bag's stability.If a zipper or tin-tie is included, it is sealed or applied near the top edge. Other access methods like perforations and tear notches are also integrated. After forming the gussets, vertical heat seals are applied along the sides, securely bonding the layers together.The bottom folds are then cut and sealed to form the final pouch structure. The individual bag is cut vertically along the side seals and conveyed to a filling station, where it is filled with the designated content. Following this, if a zipper is present, it is closed, and the top of the bag is heat-sealed. Notches are often added to facilitate easy opening, allowing customers to access the contents with minimal effort.Step 6: Quality Tests For Kraft Paper BagsThe manufacturing process of Kraft paper bags, especially laminated versions, is entirely industrialized and utilizes advanced equipment.Since these bags play a vital role in packaging different products, they are usually taken through several tests to determine their suitability and quality.Moreover, these tests are intended to examine the reliability of the Kraft paper bag when subjected to various environmental and mechanical conditions.Some of these quality tests include the following:Tensile Test – This examination on a Kraft paper bag is conducted to determine the level to which the paper and any laminated films can stretch and the amount of force needed to break the material.Drop Test – The essence of this quality test is to determine the ideal height from which a filled Kraft paper bag can be dropped without failing.Burst Test – It is designed to examine the maximum pressure at which the Kraft paper bag can burst, which is important for heavy or bulk contents.Coefficient and Friction Test – It examines and authenticates the smoothness of the packaging material, which is important for efficient processing on automated filling lines.Compression Test – This test aims to establish the amount of external pressure or stacking weight a Kraft paper bag can endure without being crushed.Puncture Resistance Test – It intends to determine the amount of force needed to puncture the material used for manufacturing Kraft paper bags, especially when laminated or holding sharp-edged contents.Seal Strength Test – For heat-sealable, laminated Kraft paper bags, this test analyzes how properly the seal performs and how efficiently it keeps the bag enclosed within a specified period.Vacuum Test – For high-barrier laminated Kraft paper bags, this quality test is designed to establish any leakage possibility under external vacuum pressure.In essence, there are specific levels these tests must meet for a Kraft paper bag to be declared suitable, safe, and of the required quality.Reputable Kraft paper bag manufacturers have well-equipped laboratories and qualified personnel to handle all the relevant quality tests.Company ProfileFAQQ1. What types of packaging materials are available?* Plastic Films and Bags: Commonly used for flexible packaging, including pouches, wraps, and shrink films. Materials include polyethylene (PE), polypropylene (PP), and polyester (PET).* Paper and Cardboard: Used for boxes, cartons, and paper bags. Often made from recycled paper or corrugated cardboard for added strength.* Biodegradable and Compostable Materials: Made from materials like cornstarch or plant fibers, designed to break down more quickly in the environment.Q2. What factors should I consider when choosing packaging materials?* Product Protection: Consider the material's barrier properties to protect against moisture, light, and oxygen.* Shelf Life: Choose materials that help extend the product's shelf life.* Cost: Evaluate the cost of the material against your budget and production needs.* Sustainability: Consider eco-friendly options like recyclable or compostable materials.* User Experience: Ensure the packaging is easy to use, store, and transport.Q3. How can I determine which material is best for my product?* Product Type: Assess the nature of your product (e.g., liquid, solid, perishable) to choose appropriate packaging.* Storage Conditions: Consider the conditions under which your product will be stored and transported.* Regulations: Ensure compliance with industry regulations and standards for packaging materials.Q4. Are there sustainable packaging options available?Yes, there are several sustainable packaging options, including:* Recyclable Materials: Such as PET, HDPE, and aluminum.* Biodegradable Materials: Made from natural sources that decompose more quickly.* Compostable Materials: Designed to break down in composting environments.* Refillable Packaging: Reduces waste by allowing customers to refill their containers.Q5. How do I ensure the quality and safety of packaging materials?* Certifications: Look for certifications like ISO, BRC, or FDA approval that indicate compliance with quality and safety standards.* Testing: Conduct tests for durability, barrier properties, and compatibility with the product.* Supplier Reputation: Choose materials from reputable suppliers with a history of high-quality products.Q6. Can I customize my packaging?Yes, many packaging materials can be customized with printing and unique designs to enhance branding and meet specific needs.Q7. What is the lead time for ordering packaging materials?Lead times can vary depending on the type of material, customization requirements, and supplier. It's best to discuss timelines with your packaging provider to ensure timely delivery.Q8. How should I store and handle packaging materials?* Storage Conditions: Keep materials in a cool, dry place away from direct sunlight and extreme temperatures.* Handling: Follow proper handling procedures to avoid damage and contamination of the materials.Q9. Can I get samples before placing a large order?Most suppliers offer samples of packaging materials so you can evaluate their suitability for your needs before committing to a large order.Q10. What are the benefits of using advanced packaging technologies?* Improved Protection: Enhanced barrier properties and durability.* Efficiency: Faster production and better quality control.* Customization: Greater flexibility in design and functionality.

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