Brand:CHIMA
MOQ:5
Quantity:600
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Efficient Surface Sizing Agent (Weakanionic) 1. ProductOverview: This product is styrene - acrylate polymercopolymer, used for the sizing between paper and paper board.Surface sizing agent can significantly improve paper waterproofperformance, obviously improved ring pressure value, at the sametime, it can also enhance the physical strength, smoothness,stiffness, etc at a a certain degree. In addition, it still canimprove paper printing performance. Anionic surface sizing agent iswidely used in surface sizing process of coated white board paper,white cardboard, coated paper, kraft board paper and high-strengthcorrugated paper, and be able to replace the imported products ofthis kind. 2. Product Properties Anionic surface sizing agent has a wide application range,and it can be used for all kinds of surface sizing equipment; ifused together with starch, it can obtain excellent surfacestrength, and improve the paper water resistance. Under thesituation of greatly reduce of internal sizing agent , anionicsurface sizing agent can exert its excellent properties; it canform a thin layer on the paper surface to reduce paper powder,improve air permeability and surface strength. Compared withprevious sizing agent, anionic agent has an excellent performance,it not only can reduce the cost, but also can improve theproduction efficiency.
3. Technical index: Ionic properties:weak anionic Solid content: 25±1% Viscosity: below 50CPS Shelf life: 6 months Appearance: whiteemulsion PH value: 2.5 ~5.5 (25 degrees Celsius)
Solubility: soluble in water under normal temperature
4. Product Features 1) Thisproduct has excellent resistance to water, can completely replacethe commonly used rosin agent and AKD series of internal sizingagent, clear paper machine and reduce the cost. 2) Greatlyreduce the paper powder generagted, improve the surface strength ofprinting adaptability. 3) Largely improve the air permeabilityand water resistance. 4) It has excellent mechanicalstability, can be used on different types of machines. 5)Compared with other sizing agent, it generates less foam, but noreduce of paper whiteness. 5. Usage &Precautions 1) oxidize starch in 90-95°C for 30minutes, dilute the solution to 8-10%; when the temperature ofstarch solution drop to 60-70 °C, add 5-20% of sizing stostecompared to starch; It could have more better sizing effect if usedtogether with aluminum sulfate. 2) Sizing agent can only beadded after the starch gelatinization and dilution well(temperature of starch solution shoule no more than 75 °C afterdilution), stir evenly for later use. Experience shows that bettersizing effect can be achieved at the temperature of 65-75°C. 3) Dosage of sizing agent is subject to paper type,raw material and sizing degree and make corresponding adjustment;dosage for per ton of white board paper and kraft board pape isabout 3kg , and the surface absorptivity could achieve 30g/ m²(60seconds) below: dosage for per ton of corrugated paper is 3-4 kg,and surface absorptivity could achieve 40g/ m² (60 seconds)below.4) Anionic sizing agent can be used together with other anionicand non-ionic additives in sizing process together with starch ingengeral, but it must not be used with cationic oxidized starch.
5) In sizing process, the temperature of cylinder should becontrolled at about 120 °C. When paper added, it will achievecomplete sizing degree; but when the temperature is too low anddrying is not sufficient,there’ll have certain sizing maturationperiod. 6) The moisture of paper roll influence thepaper surface adsorption to sizing starch liquid. Generally, themoisture shoule be controlled at about 6.0-8.5. 7) To avoidrapid drying. 8)Prevent from frozen in winter,andstorage in 4-25 degrees Celsius; avoid direct exposure, and keeptin the shade place.
High Efficient Paper Surface Sizing Agent (Weak anionic)
