Dongguan Dingxing Industrial Co., Ltd. has been focusing on the mildew-proof, moisture-proof and fresh-keeping industry for more than 25 years. As a professional desiccant manufacturer, its silica gel desiccant has passed the GMP 100,000-level clean workshop production of medical-grade moisture-proof solutions, and has served more than 200 medical customers such as new crown test kits. Not only that, Dingxing's calcium chloride desiccant uses nano-sustained release technology to help customers reduce the cargo damage rate from 16% to 0.7%. The original deoxidizer dual-phase oxygen control system has passed ISO 22000 certification and can extend the shelf life of food to 36 months (compared to 12 months with traditional solutions). Montmorillonite desiccant has passed the EU REACH certification and can be recycled 5 times, providing moisture-proof protection for higher-demand precision electronic components.
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Custom Desiccant Manufacturer
（Dingxing protects customers' products through intelligent manufacturing system, customized services and full-link quality assurance）
1.Industrial 4.0-level intelligent equipment, double guarantee of production capacity and quality
With 200+ high-speed intelligent multi-column machines and 10 calcium chloride desiccant production lines, the monthly production capacity of silica gel desiccant reaches 600 million packs (3 times the industry average), meeting the sudden large-volume order demand for COVID-19 test kits (such as emergency expansion to 120 million packs/month in 2023)
100,000-level GMP dust-free workshop and 10,000-level laboratory, ensuring zero microbial contamination of pharmaceutical/food-grade desiccant, in line with FDA DMF 31280 pharmaceutical-grade standards
Continuously introduce advanced equipment such as environmentally friendly granule packaging lines, and the moisture absorption rate of silica gel desiccant is increased to 300g/pack
2.Customized service, flexible adaptation throughout the entire process
supports any weight adjustment from 1g to 500g, and silica gel desiccant can be selected from packaging materials such as Aiwa paper/coated fiber to meet the differentiated needs of nuts, dry goods, diagnostic reagents, etc.
Develop nano-coated calcium chloride desiccant for shipping scenarios (humidity control ≤60%RH for 120 days), and the cargo damage rate is reduced from 12% to 0.65%; montmorillonite desiccant for the electronics industry achieves 0.01ppm VOC control
Provide multi-language logo printing, support supporting declaration of drug packaging material registration certificate
3. Agile response system
48-hour emergency delivery
Relying on the 26,000㎡ production base and grid-based regional service center, we can achieve rapid response to orders for diagnostic desiccants
Full-cycle service network
Provide SGS test report pre-examination before sales, support quality traceability after sales, and achieve zero complaints from Chilean customers in 8 years of cooperation
Extreme demand acceptance
During the surge in orders for COVID-19 test kit desiccants in 2023, we will still maintain a 48-hour delivery cycle (the industry average is 7 days)
4. 25 years of technology accumulation, solving industry pain points
20+ patents including "zero mold" anti-mold tablets and dual-phase oxygen control system, solving problems such as the attenuation of moisture absorption efficiency of traditional desiccants and excessive oxygen residues
Passed REACH/ROHS/BSCI certification, products directly enter the European and American markets (the repurchase rate of Chilean and Philippine customers exceeds 80%)
What is Desiccant？
Desiccant refers to a substance that removes moisture from a humid environment to prevent product degradation. It works through two mechanisms: chemical adsorption (such as calcium chloride reacting with water) and physical adsorption (such as silica gel absorbing moisture). Desiccant is widely used in pharmaceutical, electronic product and food packaging to protect items from damage caused by mold, corrosion and moisture during storage or transportation. Dingxing's desiccant is mainly used for mildew and moisture prevention in the pharmaceutical, food, home and industrial industries. Its main products include FDA-certified medical grade silica gel desiccant, anti-fog desiccant for car lights, marine moisture control calcium chloride desiccant, biodegradable and environmentally friendly montmorillonite desiccant, etc.
Advantages of DINGXING Desiccant
Medical grade silica gel desiccant (FDA certified)
Dingxing's independently developed FDA-certified medical grade silica gel desiccant has passed the DMF 31280 medical master file qualification, with a microbial contamination risk of <0.1%. It is specially used for moisture-proofing medical packaging such as vaccine kits, with a moisture absorption rate of up to 35% (RH=90% environment)
Shipping container desiccant (calcium chloride technology)
The patented calcium chloride slow-release desiccant has a moisture absorption rate of 300% of its own weight. It has been verified by SGS that it can maintain container humidity ≤60%RH for up to 120 days at extreme temperature changes of -25℃~60℃, and the cargo damage rate has been reduced from the industry average of 15% to 0.8%.
Global customized packaging service (multi-language adaptation)
It supports flexible customization of weight from 1g to 2000g, provides multi-language label printing and brand LOGO implantation services such as Chinese/English/Japanese, and is suitable for scenario-based packaging needs such as food-grade deoxidizers and electronic moisture-proof bags.
Degradable and environmentally friendly desiccant (montmorillonite technology)
The moisture absorption rate of natural mineral ingredients exceeds 50%, which is suitable for the moisture-proof requirements of precision electronic components.
Safety, environmental protection and compliance certification
The entire product line has passed REACH, RoHS, ISO 9001/14001 certification, and eliminates harmful substances such as DMF/cobalt chloride. The raw materials used are 100% pure, and the return rate is only 0.2% (the industry average is 5%).
Emergency Capacity Response Network
During the COVID-19 period, production capacity was expanded to 120 million packs/month within 48 hours, medical-grade desiccants were directly supplied to 50 countries around the world, and delivery cycle was shortened to 1/3 of that of peers (72 hours → 24 hours).
Types of Desiccant
Silica gel desiccant (food grade/industrial grade)
As a core category of FDA-certified food-grade desiccants, silica gel desiccant has become the preferred solution for moisture-proofing pharmaceutical packaging, anti-oxidation of electronic products (precision instruments) and mildew prevention in homes (wardrobes, shoe cabinets) due to its high moisture absorption rate (moisture absorption rate ≥30% when RH=90%) and environmental protection and non-toxicity. Its products have passed FDA 21 CFR 175.300, EU REACH/ROHS and ISO 9001/14001 certifications.
Calcium chloride desiccant (for shipping containers)
Calcium chloride desiccant moisture absorption rate of up to 300%, sustainable moisture control for 60-90 days, effectively solve the problem of "container rain" caused by temperature difference in shipping containers, reduce the cargo loss rate to 0.6%, the use of hanging design to fit the container groove, save 80% space, support 50 grams to 2000 grams of customization, passed the IMDG shipping standard.
Montmorillonite desiccant (natural mineral type)
Montmorillonite desiccant is made of natural montmorillonite (content ≥ 95%), which is non-toxic and degradable, with a neutral pH (7.0±0.5) and is non-corrosive.It can still maintain high adsorption efficiency in low temperature and low humidity environment, and its saturated moisture absorption rate exceeds 50% of its own weight. It is mainly used for moisture-proofing of precision instruments.
Car dehumidifier bag
The Car dehumidifier bag is a special dehumidification bag for vehicles to prevent moisture in winter. It uses a silica gel core material and a double-layer leak-proof packaging (PP+PE composite material) to quickly reduce the humidity in the car to below 45%RH, preventing the windows/headlights from fogging and the growth of mold in the car. It has a temperature resistance range of -30℃ to 90℃ and can be heated in a microwave oven for repeated use. The hot-selling specifications are mainly 100g, 235g, 450g, and 1kg.
Oxygen absorber(food preservation series)
The deoxidizer quickly absorbs oxygen in the package through iron based chemical reaction (O₂ concentration ≤0.01%), inhibits mold, oil oxidation and nutrient loss, suitable for nut snacks and other scenes, can extend the shelf life of 30%-50%, provide bags (20 to 1000 type), sheet, film and other forms, Packaging with high barrier composite film (oxygen permeability ≤20ml/m²·24h), in line with FDA food contact standards, ISO 22000 and China GB 9685, SGS verification of 48-hour oxygen absorption rate of more than 99%, use should pay attention to sealing aging (within 5 hours after opening) and barrier packaging selection, avoid microwave heating
Customized moisture-proof solutions
According to the characteristics of different scenes, customized strategies are adopted, such as the composite solution of silica gel + montmorillonite in the dust-free workshop,Pay attention to ventilation planning and material moisture resistance optimization.
Application of Desiccant
The pharmaceutical industry
It is used for drug packaging to prevent moisture deterioration, ensure the stability of drug efficacy, meet GMP certification, and meet pharmaceutical grade production standards.
01
Logistics and transportation
Container desiccant: to prevent moisture and mildew caused by temperature difference in shipping or long-distance transportation, especially for electronic products and other goods sensitive to humidity.
02
Food packaging industry
Oxygen Absorbers: Extend the shelf life of food, prevent oxidation deterioration, often used in nuts, snacks, pet food and other packaging.
03
Home and daily protection
Indoor dehumidification: Calcium chloride desiccant can absorb moisture and odor, improve the air quality of closed Spaces such as wardrobes, shoe cabinets, and cars.
04
Industry and electronics
Protect precision instruments and electronic components from moisture corrosion to ensure a dry production environment.
05
How to customize own brand desiccant？
Customized LOGO
Supports printing of corporate LOGO, brand slogan or QR code, suitable for desiccant outer packaging bags, box sealing stickers, independent labels, etc., to enhance brand exposure
Customized Package
Supports customized double-layer composite film (PP+PE), DuPont paper, biodegradable non-woven fabrics or recycled paper and other packaging materials
Customized Materials
You can choose to customize a variety of raw materials such as silica gel, calcium chloride, montmorillonite (mineral) and composite materials to meet customers' requirements for moisture-proof goods.
Customized specifications
Supports 1g micro bag to 500g large capacity box (such as furniture shipping container desiccant)
Customized layout design
It can incorporate the customer's own main color, font style, multi-language instructions (Chinese/English/French/German), moisture absorption data and compliance logos (printing FDA, RoHS certification marks and safety warnings), etc.
Customization process
Certifications
Our Factory
As one of the top three companies in China's desiccant industry, Dingxing Industry has been focusing on technology research and development and innovation in the fields of moisture-proof, mildew-proof and deodorization since its establishment in 2000, and is committed to providing global customers with full-scenario moisture-proof solutions, covering 9 major industries such as electronics, medicine, food, and shipping.
Relying on the industrial 4.0-level intelligent production base and the 100,000-level GMP dust-free workshop, Dingxing takes "green intelligent manufacturing" as the core, builds a closed-loop ecological chain from raw material screening to terminal application, and promotes the development of a sustainable supply chain.
FAQ
Q: 1.How often does the desiccant need to be replaced? How to determine if it is ineffective?
A: It is generally recommended to replace it every 3-6 weeks (such as hanging calcium chloride desiccant). If the ambient humidity is high (such as the return of the south wind), it needs to be shortened to 1-2 weeks. Pay attention to changes in the product, such as color changes of silica gel desiccant (such as blue to red) and calcium chloride agglomeration.
Q: 2. How to deal with accidental ingestion of desiccant?
A: The general treatment method is to rinse your mouth immediately and avoid inducing vomiting to avoid worsening burns.
Q: 3. Will desiccant explode when in contact with water? How to handle it safely?
A: Desiccant will release a lot of heat when in contact with water and is prone to explosion in a closed container. The safe way to handle it is to immediately keep it away from water sources and avoid storing it in a closed space; if there is a leak, clean it with a dry cloth and rinse with clean water for 15 minutes after skin contact
Q: 4.Are desiccants potentially harmful to pets or children? How to prevent them?
A: They may cause poisoning or suffocation if ingested (silica gel particles). They should be placed in a high place where children and pets cannot reach them. Low-toxic types such as silica gel should be given priority. Damaged packaging should be discarded promptly.
Q: 5. How to deal with raw material leakage caused by damaged desiccant packaging?
A: For non-food products, the residual particles should be cleaned and new desiccant should be replaced.
For food/pharmaceutical products, if they are directly in contact, it is recommended to discard the contaminated items; if only the packaging is damaged, it can be cleaned and continued to be used
Q: 6. How to identify whether the desiccant is a counterfeit?
A: From the packaging details (authentic products have clear printing and even sealing edges), ingredient verification (authentic silica gel particles are transparent and even), anti-counterfeiting technology (verify batch information through the brand's official website or scan the code, be wary of low-priced abnormal products)
We're professional desiccant manufacturers and suppliers in China, specialized in providing high quality customized service. Please rest assured to buy bulk desiccant at discount price from our factory. For free sample, contact us now.
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