{"id":609,"date":"2026-10-21T19:25:05","date_gmt":"2026-10-21T11:25:05","guid":{"rendered":"http:\/\/www.wearsmarttrack.com\/blog\/?p=609"},"modified":"2026-10-21T19:25:05","modified_gmt":"2026-10-21T11:25:05","slug":"what-is-the-production-process-of-non-woven-bags-4b73-1dc518","status":"publish","type":"post","link":"http:\/\/www.wearsmarttrack.com\/blog\/2026\/10\/21\/what-is-the-production-process-of-non-woven-bags-4b73-1dc518\/","title":{"rendered":"What is the production process of non woven bags?"},"content":{"rendered":"

If you\u2019ve ever held a reusable tote for groceries, carried a swag bag to a trade show, or grabbed a small bag for your kid\u2019s soccer snack, there\u2019s a good chance it was a non woven bag. As someone who\u2019s been running a non woven bag supply business for over a decade, I get asked all the time: \u201cWhat even is non woven fabric, and how do you turn it into a bag that lasts months, even years?\u201d A lot of folks think all reusable bags are made the same, but the production process here is a mix of old-school textile know-how and modern tech that keeps our bags durable, affordable, and better for the planet than single-use plastic. I\u2019m breaking down the step-by-step process straight from our factory floor, no fancy jargon, just the real way we turn raw materials into the bags that go out to our clients. Non Woven Bag<\/a><\/p>\n

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First, let\u2019s get the basics straight: non woven fabric isn\u2019t the same as woven fabric like cotton or polyester. Woven fabric is made by interlacing two sets of yarns (warp and weft) at right angles, but non woven is bonded together mechanically, chemically, or thermally\u2014no yarn weaving required. That means it\u2019s faster to produce, less expensive, and still strong enough for most uses, which is why it\u2019s become the go-to for reusable bags. The foundation of every non woven bag starts with picking the right raw material, and that\u2019s the first critical step in our process. For most of the bags we supply, we use polypropylene (PP) resin, which is a type of plastic that\u2019s lightweight, resistant to tears and moisture, and recyclable. We also offer eco-friendly options made from a mix of recycled PP, which is perfect for brands that want to cut down on their carbon footprint. Before we even touch the resin, we test each batch for purity\u2014any contaminants would ruin the fabric strength, so this isn\u2019t a step we skip. It\u2019s the reason our bags don\u2019t fall apart after a few uses, unlike some cheap imports.<\/p>\n

The second step is extruding the resin into tiny, fine fibers. Here\u2019s how that works: we feed the PP resin pellets into a large extruder machine, which heats the pellets to around 220 to 280 degrees Celsius\u2014hot enough to melt them into a thick, syrupy liquid, but not so hot that it burns or degrades the material. Once melted, the liquid PP is pushed through a spinneret, which is a metal plate with hundreds of tiny, uniform holes\u2014think of it like a giant pasta maker, but for plastic. As the molten PP is forced through the holes, it cools and solidifies into long, thin filaments, each just a few microns thick (way smaller than a human hair). We can adjust the thickness of the fibers here too: thicker fibers make sturdier bags for heavy loads, while thinner ones work well for lightweight promotional tote bags. This part happens fast\u2014each spinneret can produce miles of fiber in just a few hours, which is why we can keep up with large bulk orders for trade shows or grocery chains.<\/p>\n

Next, we collect the spun fibers into a web, and this is where the non in non woven really makes sense. As the fibers exit the spinneret, they\u2019re blown with high-velocity air to stretch them out and make them longer and more flexible. Then, they\u2019re deposited onto a moving conveyor belt in a random, crisscross pattern. We don\u2019t line the fibers up neatly like a woven fabric\u2014this random arrangement is what gives non woven its unique strength; it resists tearing from any direction because the fibers are locked together in all angles. The thickness of this web is adjustable, too: we can make it thin for small shopping bags or thick enough for heavy-duty industrial totes. After laying the web, we do a quick check to make sure there are no gaps or uneven spots\u2014even a small thin patch would be a weak point in the final bag, so we correct it on the spot.<\/p>\n

Once the fiber web is formed, we need to bond it together permanently. This is the most important step for durability, because if the fibers aren\u2019t bonded, the fabric would just fall apart into loose threads. We use thermal bonding for most of our bags, which is cost-effective and creates a strong, smooth fabric. Here\u2019s how thermal bonding works: the fiber web is passed through a series of heated rollers, which press and heat the fibers just enough to melt the tiny points where they cross. When those points cool, they fuse together, creating a solid, flexible sheet of non woven fabric. We can control the temperature and pressure of the rollers to adjust the fabric\u2019s feel\u2014lighter pressure makes a softer bag for retail promotions, while heavier pressure makes a rigid bag for carrying heavy items like textbooks or tools. For some specialty bags, we use a different bonding method: needle punching, where thousands of tiny barbed needles stab through the web, tangling the fibers together mechanically. This creates a much thicker, more absorbent non woven, which we use for cleaning wipes or heavy-duty utility bags. A small number of our eco-friendly bags use chemical bonding, where a water-based adhesive is sprayed onto the web before heating, but that\u2019s only for specific applications because we prefer the durability and lack of harsh chemicals of thermal bonding.<\/p>\n

After the fabric is bonded and cooled, it moves to the printing stage, which is where most of our clients see the final product start to take shape. We offer a few different printing methods, depending on the order size and the design complexity. For small bulk orders, like 1,000 promotional tote bags, we use screen printing, which is affordable and produces vibrant, long-lasting designs. For larger orders, or designs with lots of small details or gradients, we use digital printing, which lets us print high-resolution images directly onto the fabric without the need for separate screens. Before printing, we run a test print on a scrap piece of fabric to make sure the colors are exactly right\u2014brand consistency is huge for our clients, so we match PMS colors to their logo guides every time. We also print on the inside of the fabric for some clients, which makes the design more protected from wear and tear. Once the print is dry, we let the fabric cure for 24 hours to make sure the ink doesn\u2019t rub off, and we do a rub test on every roll to check durability.<\/p>\n

Now that the fabric is printed and cured, it\u2019s time to cut and sew it into the actual bags. This part looks simple at first, but there\u2019s a lot of precision involved. First, we lay out the fabric rolls on a cutting table, usually in layers of 10 to 20 at a time, to speed up the process without sacrificing accuracy. We use a computerized cutting machine that follows the exact pattern provided by the client\u2014each pattern includes the main bag panel, the side gussets, the bottom, and the handle pieces. For custom shapes, like small drawstring bags or large duffel totes, we adjust the pattern on the machine to fit the size requested. Once the fabric is cut, the pieces move to the sewing stations. Our sewers are all experienced in working with non woven fabric, which is thinner than woven fabric so it requires special needles and thread. Most non woven bags use the same PP thread as the fabric, because it\u2019s strong and doesn\u2019t stretch or fray. We sew the side seams, the bottom, and then attach the handles\u2014handles can be looped fabric, webbing, or even printed directly onto the bag for a seamless look. After sewing, every bag goes through a final quality check: we look for loose threads, uneven stitching, smudged ink, or any signs of weak bonding. We reject about 2% of bags per order during this check, which is low, but worth it to make sure our clients get only products they\u2019re proud to put their name on.<\/p>\n

Once the bags pass inspection, they\u2019re packed for shipping. We use flat packing for most orders, which is cheaper to ship and easier for clients to store and distribute, and we also offer pre-folded or boxed packing for retail display, if that\u2019s what the client needs. We label each package with the order number, quantity, and any special instructions, and we do a final count to make sure we\u2019re sending exactly what the client ordered.<\/p>\n

What a lot of people don\u2019t realize is that we\u2019re constantly refining this process to make our bags more sustainable. We recently started recycling factory offcuts\u2014scraps of fabric from cutting and sewing that used to go to landfill\u2014back into new non woven fibers, which cuts our waste by 15% every month. We also switched to water-based inks for all our printing, which eliminates the harsh chemical solvents we used before, making the bags safer for handling and better for the environment.<\/p>\n

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If you\u2019re looking for high-quality non woven bags for your brand, event, or business, we work with clients of all sizes, from small local shops to national retail chains. Whether you need custom printed promotional totes, heavy-duty shopping bags, or eco-friendly reusable options, we can tailor the production process to fit your needs. For more details on ordering, pricing, or minimum quantities, feel free to reach out and start a conversation about your project.<\/p>\n

PP Woven Bag<\/a> References<\/p>\n

    \n
  1. Horrocks, A. R., & Anand, S. C. (2000). Handbook of Technical Textiles. Woodhead Publishing.<\/li>\n
  2. ASTM International. (2021). Standard Guide for Nonwoven Fabrics. ASTM D4965-21.<\/li>\n
  3. Nonwovens Industry Association. (2022). Global Nonwovens Production and Market Report.<\/li>\n<\/ol>\n
    \n

    Wenzhou Hangyi Packing Co., Ltd.<\/a>
    As one of the most professional non woven bag manufacturers and suppliers in China, we also support customized service. Please rest assured to wholesale bulk durable non woven bag in stock here from our factory. If you have any enquiry about pricelist, please feel free to email us.
    Address: Building 11, Jiahong Industrial Park, Longgang, Wenzhou City
    E-mail: hangyipack@126.com
    WebSite:     https:\/\/www.hangyipack.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    If you\u2019ve ever held a reusable tote for groceries, carried a swag bag to a trade … What is the production process of non woven bags?<\/span>Read more<\/a><\/p>\n","protected":false},"author":338,"featured_media":609,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[572],"class_list":["post-609","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-non-woven-bag-41c8-1e9c2c"],"_links":{"self":[{"href":"http:\/\/www.wearsmarttrack.com\/blog\/wp-json\/wp\/v2\/posts\/609","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.wearsmarttrack.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.wearsmarttrack.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.wearsmarttrack.com\/blog\/wp-json\/wp\/v2\/users\/338"}],"replies":[{"embeddable":true,"href":"http:\/\/www.wearsmarttrack.com\/blog\/wp-json\/wp\/v2\/comments?post=609"}],"version-history":[{"count":0,"href":"http:\/\/www.wearsmarttrack.com\/blog\/wp-json\/wp\/v2\/posts\/609\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.wearsmarttrack.com\/blog\/wp-json\/wp\/v2\/posts\/609"}],"wp:attachment":[{"href":"http:\/\/www.wearsmarttrack.com\/blog\/wp-json\/wp\/v2\/media?parent=609"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.wearsmarttrack.com\/blog\/wp-json\/wp\/v2\/categories?post=609"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.wearsmarttrack.com\/blog\/wp-json\/wp\/v2\/tags?post=609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}