Regarding whether the non-woven bag is a hot press bag or a sewn bag, we can first look at the differences and advantages of the two types of bags.
hot press bag
The literal meaning of a hot press bag is a kind of non-woven bag that uses high temperature to press the non-woven fabric together.
The current method is to use sonic pressure welding, which is a primary internal interconnection method used to connect to the actual die surface or the primary internal interconnection method of the device logic circuit. This connection method combines logic signals or chips. The telecommunications signal is connected to the outside world. Other primary interconnection methods include flip-chip and tape-and-reel automatic soldering, but sonic bonding has an advantage in these connection methods, and 90 of the interconnection methods use this method. In this figure, about 90 use gold wire sonic welding, and the rest use aluminum and other precious metals or materials similar to precious metals.
Bags and non-woven bags mainly adopt wire bonding. First, the chip is fixed on the substrate or lead frame, and then the circuit on the chip is connected with the circuit on the substrate or lead frame with thin metal wires.
sewing bag
A sewing method in tailoring. It is mainly used to stitch and wrap cloth, leather and other products with a sewing machine to form a bag, which is an important link in knitted products.
Since different fabric strips are stitched together, and also stitched from different angles and different methods, usually a complete sewn bag may take 5 or 6 steps to make a sewn bag. It is because of the comparison of methods. Complicated, so its price may be slightly more expensive than the hot press bag.
Because it is manually stitched manually, the load-bearing capacity is more than that of the hot press bag, which can withstand without breaking, and has a service life, and the advertising benefits of the bag.
Therefore, in general, I think it is better to sew bags, which is worth the money.
