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Paper straw roll adhesive selectionSpecially designed to meet food contact requirements, with fast initial adhesion and low odorHot melt adhesive pelletsThe straw rolling line has a fast speed, narrow overlap surface, and the glue must grasp the paper tape within 1 second. At the same time, it can withstand the low temperature and long-term soaking of cold drinks. The direct consequence of choosing the wrong one is that the straw will dissolve after soaking for ten minutes, or the drink will have a sticky taste.
| Problem phenomenon | Common reasons | adjust direction |
|---|---|---|
| Bent edge at the overlap | Insufficient initial adhesion or short pressing stroke | Change the initial adhesive model and increase the pressure on the pressure wheel |
| Intermittent glue line | Low temperature or partially clogged nozzle | Raise the temperature by 5-10 ℃, stop the machine and clean the nozzle |
| Overflow adhesive roller | Excessive glue application and low viscosity | Reduce the diameter of the glue line and check the pot temperature |
| Finished product turns yellow | Long term overheating insulation and insufficient antioxidant | Reduce standby temperature and replace stable formula |
A single paper straw consumes very little glue, and negotiating the price per ton is not meaningful. What really affects the cost isScrap rate and downtime for cleaningA line is shut down three times a day for cleaning due to glue overflow, and the losses often exceed the price difference of the glue used. Suggest comparing different models based on the comprehensive glue cost per 10000 straws plus downtime losses.
Sunlife Hot Melt Adhesive from Guangzhou Sunlife Trading offers low odor and light colored models for food packaging. We can provide temperature and opening time recommendations based on the customer’s tube rolling machine model, and support sending samples to our own production line for one shift verification. Batch customers can provide batch by batch testing data for easy inclusion in the warehouse acceptance process.
Q: Can ordinary sealing rubber particles be directly used to make paper straws?
Answer: Not recommended. The ordinary sealed box type is not designed for food contact and water resistance, resulting in higher odor and compliance risks.
Q: The straw dissolves when soaked in water, is it necessarily a problem with the glue?
Answer: Not necessarily. It is also possible that the paper tape has a low basis weight, insufficient overlap width, or inadequate compression. The process should be checked before replacing the adhesive.
Why is thermal stability importanthot melt adhesive pelletsThe core indicators? Heating hot melt adhesive particles in a glue pot for a long time will accelerate the decomposition of products with poor thermal stability, resulting in decreased adhesion, darker color, and increased carbides. Understanding thermal stability indicators is a fundamental skill in selection. Three core indicators […]
Direct answer: In most cases, local ventilation is required. Whether to install treatment equipment depends on the emission level and local requirements Hot melt adhesive granulesBelonging to solvent-free adhesives, VOC emissions at normal construction temperatures are much lower than solvent based adhesives, and large-scale treatment facilities such as RTO and activated carbon adsorption are usually […]
Let me start with a true story that I’ve been remembering for eight years. In the winter of 2016, a printing factory owner called me at 11 a.m. and started off by saying, “Brother Shu, something big has happened. The 50,000 textbooks I just bound have their adhesive ridges broken on the first page. The […]
Special requirements for teaching aids Teaching aids are books that are frequently read and pulled by children,Hot melt adhesive granulesIt is necessary to ‘keep the page open and the spine intact’. When purchasing, don’t just look at the unit price, make a list of performance and check each item one by one. Procurement Checklist Initial […]
