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08

2022-09

Heat-sealing process for heat-seal bags

Heat-seal bag sealing process: A heat-seal bag is a type of tape used to seal waterproof and airtight products such as raincoats, tents, and balloons. It is applied by heating the bag with specialized equipment—such as a hot-air seam sealer or a high-frequency heat sealer—and then sealing it over pinholes to achieve a watertight and airtight seal. Heat-seal bags are widely used in the packaging of daily chemical products.

2022-09-08

26

2022-08

Maintenance and Care of Plastic Bottom-Sealed Bags

The advantages and performance of plastic-seamed-bottom bags are becoming increasingly well known. At the same time as their widespread production and consumption, it is also important to understand the maintenance requirements and handling precautions for these bags. So how can we mitigate the aging of plastic-seamed-bottom bags to some extent and thereby extend their service life? Next, we will examine methods for monitoring the anti-aging performance of these bags.

2022-08-26

19

2022-08

Manufacturing Process of Plastic Bottom-Sealed Bags

The weaving process for plastic bottom-seal bags consists of the following steps: yarn hanging, yarn threading, yarn picking, lifting, winding, and unwinding. First, the warp yarns are drawn from beneath each spindle on the warp beam. The warp yarns pass through the porcelain eyelets of the warp beam, then through a long vertical plate, a hemming roller, an unwinding guide roller, a grid roller, another long vertical plate, a tension roller, the porcelain eyelets, a pull rod, a jute cord, and a round steel buckle, with sufficient fabric allowance reserved to allow the warp yarns to circulate continuously.

2022-08-19

16

2022-08

Pros and Cons of Plastic Bottom-Sealed Bags

Seamed-bottom bags are common packaging solutions for industrial and agricultural products, with increasingly diverse applications in the plastics sector. Plastic seamed-bottom bags primarily include polypropylene bags and polyethylene bags. Based on the sewing method, they can be further classified into seamed-bottom bags and seamed-edge bags. Currently, they are widely used as packaging materials for fertilizers, chemical products, and other commodities. So why are plastic seamed-bottom bags so extensively employed? The following sections will provide a detailed explanation.

2022-08-16

08

2022-08

Are eco-friendly paper-plastic composite bags good?

Are eco-friendly paper-plastic composite bags a good choice? There are numerous methods for laminating paper and plastic. Depending on the nature of the contents, different lamination processes and structural materials can be employed to ensure that the bags perform optimally during use. During production, selecting the appropriate lamination process is especially critical, as it not only affects the quality of the paper-plastic composite bags but also influences the efficiency of composite-material manufacturing. Naturally, this also aligns with environmental protection goals.

2022-08-08

02

2022-08

What is a paper-plastic composite bag?

What is a paper-plastic composite bag? A paper-plastic composite bag is made of plastic and kraft paper. The plastic layer typically consists of a flat-woven fabric based on polypropylene (PP) or polyethylene (PE), while the kraft paper layer is made from refined, composite specialty kraft paper. This type of bag features high strength, excellent water resistance, and an attractive appearance.

2022-08-02

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