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Industry News

17

2022-10

Challenges in Various Thermal Sealing Methods for Heat-Seal Bags

Challenges in various thermal sealing methods for heat-sealable bags: While numerous thermal sealing techniques exist for plastic films used in heat-sealable bags, each method is suitable only for specific types of plastic films, facilitating selection during the design phase. Factors such as temperature, pressure, seal-bar geometry, and heating mode all play a critical role.

2022-10-17

20

2022-09

Heat-sealing method for heat-seal bags

Heat-sealing methods for heat-seal bags: The sealing methods for plastic heat-seal bags include tying, heat sealing, nail sealing, and adhesive sealing. Among these, heat sealing is simple and reliable and is widely used. In the heat-sealing process, a thermoplastic polymer is used in combination with other plastics to heat and press the sealing area of the plastic film, causing it to bond together.

2022-09-20

Heat-sealing method for heat-seal bags

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

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