1. Strengthen the bonding line of the pull cloth and the pull teeth, the chin of the pull cloth will become stronger, and the teeth joint part of the pull teeth will be polished to improve the elongation. The flat frame is simple in structure, flat in shape, and has no undulations in structure. It is an ordinary aluminum material with a moderate amount of aluminum. Due to its simple structure and easy processing, the production cost is moderately higher than that of the zipper lock, the production process is mature, and the quality cost is higher than that of the zipper lock, so it is a good travel choice. Market share: aluminum frame luggage accounts for more than 90% of the market.
2. Introduction of zipper manufacturers Due to the simple technology and low cost of ordinary aluminum frames, 90% of aluminum frame suitcases on the market are produced with this structure. At the same time, the over-simplified structure and technology are easily deformed after being severely impacted, and cannot be opened and closed smoothly.
3. Due to the complex structure of the deep frame and its many undulating and curved shapes, the production volume of aluminum is very large, and the material cost and production cost are much higher than that of the ordinary flat frame. It needs to be integrally formed according to the structural requirements. It can only be produced by a few large factories in China. Complicated production technology, low output and high cost are doomed, and it is a matter of high-quality consumer travel.
4. Precautions for the installation of the zipper head of luggage: If the slider falls off, you can use a lighter to burn off the edge of the cut tape to avoid falling off. With the teeth facing up, pull the zipper head into the teeth, double pinch the two ends of the tape (arrow position) and pull them outward together) as shown in the picture, the zipper head enters the teeth along the outward tension of the tape. After pulling the tape, pull the head to install. Use a mouthguard to pull out excess teeth.
Because the invisible zipper is relatively small and easy to break, it is especially the pocket zipper of winter coats. The exchange method is: ask the shoe repairer to directly replace the new zipper. You can also unzip the zipper and replace it with a new one. It must be disassembled from the clothes, and the hand-sewn should be hidden in the clothes so as not to affect the appearance of the clothes. Replacing only the sliders is a hassle, so unfasten the zippers one by one, burn both zippers with a lighter, and pinch the pointed things to allow the sliders to pass through. Go through the alignment, and pull the zipper hard and you’re good to go.
