Paper Ice Bags That Do Not Tear Even When Filled With Water
Submerge a notepad in water or another liquid and it's going to develop into a sodden mess
. You may test and see it for yourself: get hold of a notepad, spray it with some water and see exactly how the paper softens. However, are you aware that there are some paper products on the market that will not tear so easily even when totally drenched?
Paper is anything but unusual when it pertains to holding wet things such as ice; seeing use as early as the 1950s (probably, even earlier). Ice bags made from paper do not exactly make use of the type of paper for notebooks. As Dr. Martin Hubbe of North Carolina State University discusses, producers of paper ice bags mix a specific chemical that improves the wet strength of the paper considerably. There may be various other ways to do this but Hubbe states this chemical is the key method.
The magic chemical is polyamidoamine-epichlorohydrin (PAAE) resin, a family of water-soluble polymers that's often included at a particular point in the process. The resin is most effective when it's added to neutral and alkaline stock (pH levels in between 6 and 9) in the course of paper processing. A good example of an industrial PAAE resin in the market is Ashland's Kymene.
Hubbe also explained that the resin could perform even better if cellulose gum (carboxymethyl cellulose) is added to it. Adhering to a cellulose gum-resin ratio of 0.4 to 1.0, the cellulose gum improves the resin's retention in the stock and allows a lot more resin to be added in the process. Greater amount of resin will definitely enhance the strength of soaked paper.
The result is a paper ice bag that will not give way to tearing even when it has taken in a great deal of water from the melting ice. Paper ice bags are favored by people who want to invest in green options to protect the environment. Typical paper ice bags can easily carry up to 25 pounds of ice but some other variants have a higher capacity. In the end, you have PAAE resin and cellulose gum to acknowledge for making paper ice bags possible.
For additional information on typical procedures of enhancing the wet durability of paper, you can check out the NCSU site at NCSU.edu. For details on mesh bags along with various other items, you could ask a local vendor.