How to detect moisture absorption rate of Silica Gel Desiccant?
Silica Gel Desiccant is a kind of moisture-proof and dehumidification product commonly used in daily life. It is common in food packaging. Silica Gel Desiccant is also called moisture-proof bead (transparent bead particles). It is non-toxic, tasteless and non-corrosive and can be directly contacted with food , Eating will not be absorbed by the body, does not produce harm, is a food packaging moisture ideal food a silicone desiccant, then how do we detect whether the silicone desiccant moisture absorption function? Now Dingxing silicone desiccant teach you a simple How to identify Silica Gel Desiccant:
1, the Silica Gel Desiccant disassembled, through the observation of the inside of the particles of small particles of silica gel, if there is a large number of silica gel beads yellow beads that is the material, there is no moisture absorption effect, and then see the surface of raw materials crushed glass is not used as a silica gel Beware of fake and shoddy products at the initial charge.
2, take a small bag of Silica Gel Desiccant, weigh well, the need for related weighing tools, and then mark, place indoors, weighing again 5-10 days to see if the weight will increase, there is an increase is effective. Because it absorbs the associated moisture.
3, pour a small cup of cold water, torn silicone desiccant pouch, the inside of the silica gel particles into the water to see if the silicone particles will explode into pieces, and issued a "Cha Cha" sound, is valid.
4, Silica Gel Desiccant is a highly active adsorbent material, usually with sodium silicate and reaction, and aging, acid bubbles and a series of post-treatment process and made, itself is non-toxic.
5, it should be noted that: Although the water will not explode in silico itself is non-toxic, but still do not eat, except silica gel base, hydrofluoric acid and no reaction with any substance.
The amount of Silica Gel Desiccant dosage factors are: the size of the environmental space, the performance of packaging materials, storage environment of the packaged goods, atmospheric conditions when sealed, the shelf life of the packaged goods, the degree of sealing the package and so on. When we design the dosage for the customer, we need to understand the above situation before we can make the best reply.
There are many kinds of silicone desiccant packaging, such as breathable tissue paper, OPP film and composite paper, silicone paper desiccant and many more.
To achieve the effect of the use of Silica Gel Desiccant, not only lies in the quality of the Silica Gel Desiccant itself, at the same time, the Silica Gel Desiccant packaging also played a role, the user according to their own products, the type of silicone desiccant and packaging types of choice, For example, the most taboo dust electronic products, it is best to use non-woven packaging Silica Gel Desiccant, and bags, shoes and hats products can be used composite paper, and to achieve economic and practical package, it should be built on the product Need to understand the basis of the above.
In addition, how to buy a good silicone desiccant it?
First, the appearance of judgments: Good quality bag silicone desiccant product shape neat, clear printing can be argued, the width of the seal stress moderate, and there will be no folder material, raw material fullness good. Poor quality silicone desiccant mostly rough work, the width of the seal varies, and some because of the bag is too small and particularly bulging.
Second, the package material to determine: Good Silica Gel Desiccant package uniform thickness, no spots, smooth surface fabric high strength, will not be inferior to the uneven thickness, very few can see the raw materials, hand kneading Will fade and have fibers fall off.
Third, look at the quality of raw materials debate: The quality of raw materials, Silica Gel Desiccant is uniform size particles, the direct touch will have obvious hand fever, and poor quality of raw materials, Silica Gel Desiccant fever will be less obvious, and more impurities, the particle size is not one.
Fourth, the weight of resolution: the conditions permitting, you can call the original weight of the desiccant silica gel, place it in a humid environment, let it naturally moisture for 48 hours, again weighing, high-quality Silica Gel Desiccant should be obvious Increase, and then dried at 105 degrees temperature, weighing three hours later, if less than the original weight, then prove that the Silica Gel Desiccant does not meet the nominal weight of the industry for the inferior silica desiccant products.