Defoamer is a special polyether compound defoamer for papermaking. It has de-foaming and antifoaming properties with strong surfactant action and long duration. It can control the whitewater system foam of newsprint, cultural paper and wrapping paper machine, improve the dewatering ability, and control the foam of the sizing system without affecting the sizing performance. This product is free of mineral hydrocarbons and is an eco-friendly product.
Advantage:
Defoamer has strong de-foaming, anti foaming and degassing capabilities and lasts for a long time.
Defoamer has good compatibility and does not conflict with other chemicals in the papermaking system.
Can effectively improve dehydration, reduce pinholes and bubbles on paper, reduce the frequency of paper breaks, and improve production efficiency.
Can improve the retention rate and reduce the load on the pump, pressure screen.
Features:
Defoamer product is a low viscosity and a facility to spread rapidly on foamy surfaces. It has affinity to the air-liquid surface where it destabilizes the foam lamellas. This causes rupture of the air bubbles and breakdown of surface foam. Entrapped air bubbles are agglomerated, and the larger bubbles rise to the surface of the bulk liquid more quickly.
ANIONIC POLYACRYLAMIDE
The polyacrylamide powder particles with anionic charge is suitable for different papermaking sewage floatation solid-liquid separation and sludge filtration dehydration according to the degree of hydrolysis.
CATIONIC POLYACRYLAMIDE
According to the different degrees of cation, the cationic charge of polyacrylamide powder particles are applied to different papermaking sewage flotation and sludge filtration. For the solid-liquid separation of papermaking wastewater, cationic polyacrylamide can effectively collect the solid content to form large and strong floc which can achieve ideal air flotation and sedimentation effect to ensure. The clarity of the filtrate. For the sludge filter dehydration, cationic polyacrylamide can effectively help form large and strong floc to remove water in the sludge and improve the dryness of sludge residue.
Advantage:
Removal of heavy metals and chemicals.
Residual protection against contamination.
Visual improvement of water and acceptability.
Features:
Cationic and anionic flocculants and thus can be used in a wide pH range. It is suitable for the treatment of wastewater, which is difficult for a single chargeable flocculant, especially in water-soluble dye wastewater decolorization.
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are water-soluble polymer products. The most commonly used solutions are formulated with polyamide-epichlorohydrin (PAE) resin chemistry and are intended primarily for the consumer market. PAE resins function in neutral/alkaline papermaking processes. They have a high level of Wet strength agent permanence, help improve machine efficiency and do not adversely affect paper absorbency.
Advantage:
Paper production efficiency: After using the product, the paper production efficiency will be improved.
Wet strength effect: Easy to absorb water, with obvious anti-scratches effect.
With excellent performance of keeping luster and color, do not reduce the whiteness of original fiber.
With stable chemical properties and good compatibility.
Features:
The product has good characteristic to reduce the problem of dropping off powder which is can widely used in the tissue, package paper, culture paper and other kinds of wet strength of paper production.
Surface Sizing Agent is a synthetic copolymer of high molecular emulsifier and styrene ester monomer. It mixes well with starch and provides the starch coating with excellent cross-linking strength and hydrophobic property. It's featured by low consumption, free odor, low foaming, long foam inhibition period and excellent film forming, and it can significantly improve the water resistance capability and ring pressure strength of corrugated paper and cardboard paper. It is a sufficient substitute for internal sizing agent and has no maturation period. It is applicable to various types of surface sizing machines.
Advantage:
Low consumption, low sizing than internal (pulp) sizing and AKD type of surface sizing. The paper can be fully cured after reeling down. Strong water-resistant performance.
Features:
The cationic surface sizing agent needs some aluminum sulfate to perform well.
The product series adapt to all high and low speed paper machines.
Good Moisture Resistance, effectively prevent the reduction of RCT.
Anionic the surface strength for culture for cultural paper.
Alkyl ketene dimer (AKD) is most common neutral/ alkaline sizing agent. It is an Internal sizing agents. Structurally, it is unsaturated lactones and it is synthesized from fatty acids. Physically it is waxy like milky emulsion chemicals. It has less corrosive to the papermaking machine than acid sizing. For cultural paper and packing paper.
CM Chemical has developed the following products.
Advantage
Alkaline sizing system reduces corrosion of paper machine equipment.
Less foam produced by the approach system than the acidic rosin system.
AKD pulp sizing cost less than rosin sizing.
Hard- sizing can be applied, and the stocking sizing degree is proportional AKD usage.
Features
Mature production process, easy application, simple adding equipment.
High self-retention, good sizing effect, fast curing rate.
Strong anti-interference and good stability.
Good anti-moisture effect for the paper, can effectively prevent the reduction of RCT.
Chemical Name: Liquid High Retention Etherification Agent (CHPTAC)
English Name: 3-Chloro-2-hydroxypropyl trimethyl ammonium chloride (CHPTAC)
Appearance: Colorless transparent liquid
Active Matter Content: 69%
Impurity Content: 1,3 - dichloropropanol: â?¤ 15PPm
Epichlorohydrin: â?¤ 5PPm
PH: 4.0-7.0
Density: 1.16 (20�°C)
Usage: Widely used in paper industry
Features and usage:
By altering the cationic etherifying agent's molecular structure, the starch's DS increases without impacting gelatinization temperature.
This elongates the starch chain and enhances charge adsorption through increased branching. When applied at the wet end, it
reinforces and retains fibers, elevating ash, whiteness, and opacity of paper. Energy is conserved, breakage minimized, and starch usage reduced, yielding multiple benefits.
Usage: Widely used in paper industry, commodity chemical industry, petroleum industry, water treatment
industry and other fields
This product is 69% water solution at room temperature. Under alkaline conditions, it will transform into
epoxy structure immediately, which reacts with starch, guar gum and other ground substances
sequentially and achieves cationization.
