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Application of CMC in Food Industry
1.CMC Applications in Fermented Yoghurt

1.1. Main Raw Materials of Fermented Yoghurt

Fresh milk or milk powder, sucrose ester, compound stabilizer (including CMC), granulated sugar, sodium citrate, phosphate, preservative, essence and drinking water, etc.

1.2. Processing Technology

Raw milk→Sterilization→Cooling→Insulated fermentation→Cooling→(Compound CMC+Sugar+Sucrose Ester) Completely dissolving and then adding→Stirring→Flavoring acid and odor→Homogeneous sterilization→Cooling→Packing

1.3. Key Point During Processing

1.3.1. The compound stabilizer is acid-resistant CMC: PGA (propylene glycol alginate)=1:1, the dosage of compounded CMC accounts for 0.4% of the total amount.

1.3.2. Compounded stabilizer, sugar and sucrose ester had better be dry-mixed. Then dissolving with 50℃ water. Filtering the solution after complete dissolution. Cooling it to 15℃ and add into the yogurt.

1.3.3. Slowly flavoring acid, then becoming quickly to control the final pH value at 3.8-4.0. The temperature should be below 15℃when flavoring acid and odor. The conditional factories usually agitate below 5℃.

1.3.4. Can select CMC FM9, FH9, FH10.

CMC Usages in Ceramic Industry
1.1 CMC Applications in Ceramic Blank

Ceramic grade CMC is used as a plasticizer, liquefacient and adhesion agent for blank. Applying proper CMC into ceramic blank can enhance the slurry fluidity, have a water-reducing effect, increase the powder production rate, reduce production energy consumption. Moreover, blank is easy to form. Mechanical strength can increase 2-3 times. It can improve the stability of the blank so that it raises the top-grade product rate, reduce late conversion cost. Meanwhile, it can form uniformly blank material during spraying and drying with big specific gravity granule and sound aggregation. Not easy to pulverize. In favor of increasing the uniformity of blank. Prevent drying and cracking. Besides, due to the good uniformity of formed blank, so.., can well control product deformation. Have a promotion effect on ensuring stable product size.

Ceramic grade CMC powder from Fortune Biotech is fine, easy to dissolve with high purity and fewer ashes after baking, which can result in good use effect to produce polishing tiles.

CMC Usages in Toothpaste Industry
1. Basic Raw Materials for Toothpaste Production

1.1 Abrasives: Dosage is 40%-55%. Common abrasives include:

Calcium carbonate (there light, heavy and natural three types, among which the cost of heavy calcium carbonate is the cheapest), calcium hydrogen phosphate dihydrate (the cost is a little higher, with which the toothpaste is bright and clean).

Calcium pyrophosphate: There are α, β, γ three types. β and γ types inter-crystallizes. Compatible with fluoride products. Have good soft abrasive.

Hydrated aluminum: One of the ideal abrasives. Good compatibility with fluoride calcium pyrophosphate products.

Silicon dioxide: Precipitated silicon dioxide has good compatibility with fluoride products. When its refraction index is the same as that of the liquid refraction index, the toothpaste body is transparent.

Water-insoluble sodium metaphosphate: Compatible with fluoride products.

Sodium aluminum silicate: The mole ratio between SiO2 and Al2O3 should be 45:7 at least. Can add fluoride product (especially disodium monofluorophosphate), or chlorhexidine

1.2 Moisturizers (Excipient): Usual usage is 20%-30%. Dosage for transparent toothpaste is 75%. Common moisturizers include glycerol, sorbitol, propylene glycol, poly(ethylene glycol). Besides, DL-Xylose has a sweet taste, and effect of moisturizing and anti-caries.

1.3 Forming Agent: Usage is 2%-3%. Often use a surfactant.

1.4 Binding Agent: Prevent the separation of powder and liquid. Endow toothpaste proper viscoelasticity and shape. Dosage is 1%-2%. Common binders have CMC, HEC, carbopol, poly(vinyl alcohol), xanthan gum, carrageenan, silicon dioxide, and complex clay.

1.5 Perfume: Dosage is 1%-2%. Common perfumes are spearmint oil, mint oil, holly oil, clove oil, fennel oil, cinnamon oil, etc.

1.6 Sweeteners: Dosage is 0.05%-0.25%. Commonly use saccharin sodium

1.7 Preservative: Dosage is 0.03%-0.1%. Often use methylparaben, ethyl and propyl ester

1.8 Corrosion Inhibitor: Commonly use sodium silicate and colloidal silicon dioxide to resist alkaline toothpaste, avoiding the corrosion of the aluminum tube.

1.9 Anti-Caries Substances: Commonly use disodium monofluorophosphate, then add sodium fluoride.

1.10 Anti-Periodontitis Substances: Select quaternary ammonium compounds, such as alkyl quaternary ammonium sulphosuccinic acid ester (inhibit bacterial plaque and dental calculus), zinc citrate, sodium polyphosphatem, chlorhexidine, etc and Chinese herbal medicines.

1.11 Anti-Dentin Hypersensitivity (when the tooth receives stimulation from cold, hot, acid, sweet and mechanical, etc): Commonly add sodium chloride, formaldehyde, zinc chloride, silver nitrate, strontium chloride and so on.

2. CMC Functions in Toothpaste

There are so many kinds of a binding agent of toothpaste. Comparing the cost performance of CMC with other binding agents, CMC is a widely used good binder.

CMC is basically compatible with a cellulolytic enzyme, to prevent viscosity from decreasing. CMC solution has pseudo-plasticity with excellent dispersing ability. It can reduce mechanical wear. CMC gum is bright, elastic and exquisite. The gum, not dehydration, not coarse after long term storage.

Customized toothpaste grade CMC produced by Fortune Biotech is featured by high substituting degree, high purity, and stable viscosity. Its even substitution results in good temperature endurance and salt tolerance.

Toothpaste Grade CMC products manufactured by Fortune Biotech has good fineness. Weight from 60 mesh to 200 mesh are available. Fast dissolving speed. It can dissolve rapidly in a common emulsifier within 5 minutes.

3. Toothpaste Grade CMC Model Selection and Dosage

For common toothpaste, we can select CMC IH9. Dosage is 0.8%-1.2%. For top-grade toothpaste, we can use CMC IH9, IH10. Separate dosage is 1.0%-1.2%. Dosage is 0.6%-1.0% when compounding with other gum.

CMC Usages in Cosmetics Industry
1. Summary

CMC has properties of thickening, bonding, dispersing, suspending, homogenization, emulsifying and stabilizing in the cosmetics industry, so CMC can be applied in any skincare cream, skin whitening cream, face powder, depilatory cream, sunscreen cream, shampoo, shower gel, facial mask, lipstick, and other cosmetics.

CMC can be absorbed by the skin to prevent dry skin. Form soft and elastic film to protect the skin.

CMC Usages in Water Soluble Emulsion Coating Industry
1. CMC Functions in Water Soluble Emulsion Coating

Polymerization between common emulsion and resin emulsion is key film-forming material Except adding pigment, thickening agent, dispersing agent, preservative and film-forming solvent, etc is needed.

CMC Usages in Tobacco Industry
1. CMC Use Methods and Effects in Tobacco

As a binding agent of tobacco sheets, CMC is an ideal binder to produce a tobacco sheet with the rolling process.

Pulverize tobacco leaf into tobacco smalls, and dry-mix it with CMC. Then stir a mix with glycerol, chitin, phosphorous acid, perfumes, and preservative. We can get the tobacco sheet through rolling. Cut it into pipe tobacco. Applying CMC as a binding agent for the tobacco sheet has a low broken rate, has good water retention, not dry. Can form bright soft cut tobacco. No peculiar smell when flaming.

CMC Usages in Papermaking Industry
1. Paper Pulp Additives

Apply CMC into the paper pulp (add before pulping and alums mixing). CMC can disperse fiber, improve uniformity and strength of paper (bursting strength and stiffness). Using CMC with the same beating degree can shorten beating time, conserve energy. Dosage of CMC is 0.2%-0.8% of paper pulp. Can use CMC RM8-1. With the add of CMC, paper tension increases 40%-50%, tearing strength raises 50%, flexibility increased 4-5 times. Meanwhile, paper quality is of smoothness with good ink absorbency and clear printing edge. It's much better to use hard water during

CMC Usages in Petroleum and Natural Gas Industry
1. CMC Applications Petroleum and Natural Gas

During the exploring, drilling, and workover of petroleum oil and natural gas, the borehole wall is easy to lose water, cause the change of well diameter and collapse of oil well, so that the project can not be carried out normally, even to give up halfway. Therefore, it requires adjusting the physical indexes of drilling mud according to geological conditions, well total depth, temperature, the thickness of different areas. And CMC is the best product to adjust these physical indexed, with the main effect:

1.1 Mud with CMC can form thin and firm filter cake with low permeability on the borehole wall. Prevent hydration of shale and the spreading of drillings. Reduce the collapse of the good wall.

1.2 Mud with CMC is a kind of high efficient fluid loss agent. With a lower dosage (0.3%-0.5%) can well control the fluid loss level, and won't cause poor influence on other performances of mud, such as too high viscosity or shearing force.

1.3 Mud with CMC is high temperature-resistant. Usually, it can be applied under 140℃ high-temperature environment. If use CMC with high substitution degree and high viscosity can be used under 150℃-170℃ high-temperature environment.

1.4 Mud with CMC is of salt-tolerance. The performances of CMC on salt-resistance are: keep reducing dehydrate under certain salt concentration, retain certain rheology effect, and have little change compared with that under freshwater environment. Can apply in clay free drilling fluid, and mud under the saltwater environment. Some are salt-resistant in drilling fluid with small rheology. Especially the salt-resistance CMC produced by Fortune Biotech, the change ratio of viscosity has increased above 1 under 4$ salt concentration and freshwater. That is, viscosity is almost no change in a high salt environment.

1.5 Mud with CMC can control the rheology of slurry. CMC can cut down the fluid loss level, and enhance viscosity.

2. CMC Effects in Drilling Fluids

2.1 Improve the performance of filtration and mud cake quality. Increase anti-jamming ability.

CMC is a kind of good fluid loss additive. Apply in mud can raise liquid phase viscosity and seepage resistance of filter liquor, so control fluid loss at the lowest level.

The add of CMC can make mud cake compact, firm and smooth. Reduce the situation of logging tool sticking owing to the migration of drilling tools. Reduce resisting moment on rotating aluminum rod. Relief the suction phenomenon in the borehole.

CMC dosage in common mud is 0.2%-0.3%. API fluid loss can reduce greatly.

2.2 Improve the shale carrying effect. Increase the stability of oil slurry.

Owing to good thickening property, so even if bentonite content is lower, it can still retain the desired viscosity of carrying debris and suspending barite as long as adding adequate CMC.

2.3 Resist dispersion of clay. Prevent collapse.

The reduction of the fluid loss function of CMC can slow down the hydration speed of mud shale on the borehole wall. As well as covering function on the borehole rock of CMC long-chain, can strengthen the rock structure. Not easy to collapse and spalling.

2.4 CMC is a kind of mud treatment agent with good compatibleness. CMC is compatible with different treatment agents in different mud series. It can have excellent effects.

3. CMC Applications in Well Cementation Spacer Fluids

The normal construction of cementing for good cementation is an important part to ensure good cementation quality. Spacer fluids with CMC have characteristics of reducing flow resistance and facilitating construction, etc..

4. CMC Applications in Workover Fluids

During the operation of formation testing and workover, serious pollution to oil rock will arise if using hight solid mud. To eliminate the pollution is much harder. If only use clear water or brine as workover fluids, it may cause serious leakage. Even water blocking may form due to the water from filtration on the oil rock. Or result in a partial expansion of the mud in the oil rock, and permeability damages.

Apply CMC for workover fluids can successfully solve the above issues. Can use formulations according to the fluid loss level for low-pressure borehole or high-pressure borehole.

Low pressure layer: light fluid loss: clear water+0.5%-0.7% CMC. Common fluid floss: clear water+1.09%-1.2% CMC. Serious fluid loss: clear water+1.5% CMC.

Fortune Biotech is a cmc factory in the production field of carboxymethyl cellulose (CMC), with over 40 years' experience. Having a particularly profound understanding of CMC and strong technical force, we are willing to share our technology and experience with you. Welcome to enquire!