In a recent quote request, we received the following message from a prospective customer who was inquiring about placing an order. They said, “I’m not sure I really understand the difference between woven and non woven polypropylene bags and which to choose.”
If you want to learn more, please visit our website pp non woven.
Because this is not an uncommon question we thought our readers might be wondering the same thing. Of course, there are a variety of fabrics to build a reusable bag with other than the different forms of polypropylene, but we understand the curiosity that surrounds it specifically. To make it simple, we will examine the difference between woven polypropylene and non woven polypropylene bags by answering a few key questions
Both woven and non woven polypropylene bags are made from recycled plastic. The difference is in how they are built. To make woven polypropylene plastic threads are woven together in a more traditional manufacturing process to create a durable material. To create non woven polypropylene plastic fibers are bonded together. In both instances the fabric is durable, and when used to make reusable bags they will deliver years of dependable use.
Both types of fabric come in a variety of colors and are receptive to different printing methods. Both woven and non woven polypropylene can accept a matte or glossy laminated finish. Non woven bags are less expensive than woven polypropylene bags, so if your budget is tight this could be the best option for you. If your artwork features intricate detail non woven polypropylene bags may be a better choice.
I hope this article helps you understand the difference between woven and non woven polypropylene bags. If you still have questions or need further clarification, please get in touch and we’ll do our best to explain how these eco fabrics differ. If you’re ready to get started, shop our non woven polypropylene bags now.
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The higher GSM (grams per square metre), the better? Not necessarily — it always depends on the purpose of your fabric. Let’s have a closer look at the weight of nonwoven fabrics for Home & Garden and of nonwovens used as packaging materials or for industrial processing.
In most European countries, fabric weight is measured in grams per square metre (g/m2). Simply put, it indicates the density of the fabric — how dense individual fibres are within the fabric. In English-speaking countries, fabric weight is often expressed in ounces per yard squared (oz/yd2).
The finest fabrics (almost spider-web thin) weigh 12 g/m2, and the thickest ones up to 150 g/m2.
Nonwoven fabrics of 30 g/m2 and more are used for industrial processing. “Most often, we process spunbonds weighing 30, 45, 50, 70 or 100 g/m2. Should our client require a different GSM, we get it for them,” explains Milan Polouček, the Managing Director of Milmar.
Lighter nonwovens (weighing fewer g/m²) are less costly compared to thicker fabrics. The price per kilo is the same for both; however, you get more fabric per kilo when purchasing light nonwovens.
GSM of Nonwovens for Home and Garden
Nonwovens made with the unique spunbond method are often used to cover garden plants. White fabrics of 17 or 19 g/m2 weight are utilised in the growing season to protect plants from aphids and other pests or from late frosts.
Thicker nonwovens of 30 g/m2 weight provide plant frost protection. They’re usually beige, while thinner nonwoven covers are white.
Another type of nonwovens is landscape fabric for strawberry fields, usually of 45, 50 or 70 g/m2 in weight.
GSM of Nonwoven Packaging
Many companies use nonwovens or nonwoven bags for packaging. “The most suitable fabric for packaging weighs 30, 40 or 50 g/m2, it is pliable and fits products of various sizes and shapes. That said, the weight of the product needs to be considered. If it is too heavy, it is better to use a fabric with a higher GSM,” adds Milan Polouček.
Nonwovens are also used as padding between individual products in bulk packaging; nonwoven liners are made from 30 g/m2 fabric. Nevertheless, we recommend choosing higher GSM liners for heavy products.
Contact us to discuss your requirements of operating room Clinical pack. Our experienced sales team can help you identify the options that best suit your needs.
GSM of Nonwoven Fabrics Used in Manufacturing
Nonwovens are used in various industries, including upholstery mainly for sofas and armchairs production. Nonwovens make a perfect foam seat cover — a more heavyweight piece of fabric is necessary (usually of 100 g/m2 weight).
Nonwovens are also popular in the health industry for various types of protective equipment. For example, fabric weight for face masks ranges between 25–30 g/m2.
Factors Affecting Weight of Nonwovens
Fabric weight (or density) affects properties of nonwovens, such as their tensile strength, breaking point, tear resistance, and air and water permeability. Here’s how it works.
Tensile Strength
This indicates the strength of the fabric. Tensile strength test in a lab looks like this: a strip of fabric is clamped in a tearing machine to measure the force that must be exerted before the fabric strip breaks.
Breaking Point
A strip of nonwoven fabric is loaded with a weight to measure how much the fabric stretches before it breaks. The higher the value, the more elastic the fabric.
Tear Resistance
Nonwoven fabric is torn in the middle (length-wise) and gets tested to determine how much force must be applied to widen the tear. The higher the value, the higher the tear resistance.
Here’s how individual values change with a different GSM.
Weight Tensile Strength Breaking Point Tear Resistance Method EDANA 20.2-89 EDANA 20.2-89 EDANA 70.4-99 Unit g/m2 N/5 cm % N Direction MD CD MD CD MD CD 16 26 24 53 58 17 18 17 26 24 53 58 17 18 19 35 24 55 58 20 20 23 40 28 55 58 25 28 30 45 40 75 80 35 35 35 53 50 80 87 43 45 40 65 60 90 95 50 55 45 75 70 92 97 56 61 50 90 85 95 100 65 70 60 110 105 100 110 75 80 70 120 115 105 110 85 90 80 135 130 100 110 93 98 90 155 150 95 100 103 105 100 165 155 85 95 108 113 110 175 160 80 90 115 120 120 190 180 80 90 125 130 130 195 190 75 90 130 135 140 200 195 70 85 135 140 150 205 200 50 70 140 145
Download our datasheet for spunbond nonwoven fabrics
Choosing Your Perfect Nonwoven. What Else to Consider?
In addition to the appropriate weight, consider other properties of nonwovens, such as:
,
antistatic treatment,
anti-scratch protection,
hydrophilic treatment (for better absorbing properties).
At Milmar, we are happy to help you choose the best nonwoven. We recommend the suitable weight of the fabric and even customise our products for you.
Get in touch and tell us what you’re looking for.
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