Xinquan Brand: Lightening Stripper (Part 2)

V. Precautions:
1, the use of this product in the wet paper leaves high moisture conditions, the drying temperature should be controlled at 80-85 degrees, the best sizing effect, the drying temperature exceeds 85 degrees, the degree of sizing instead decreased.
2. Good sizing effect The precipitating agent should try our best to use the Xinquan brand multifunctional sizing precipitant specially designed by our factory for production. The precipitant has the following features, which can improve the quality of the paper product, and can be used to electrically neutralize the product. The role of the bridge, flocculation of the body, compact, greatly reducing the precipitation time of the rubber, while retaining retention, adaptability, no corrosion on papermaking equipment, can be used in acidic and neutral sizing. The product has a pale green viscous liquid with a PH value of 2.8-4, a specific gravity of ≥1.1, a solid content (AL2O3) of 4.5-7.5%, a dosage of 1.5%, and a sizing value of PH6.0-7.5. High or low will affect the sizing effect.
3. When the body product is used, the Zeta potential of the paper machine wet-end paper material can be controlled within the range of 0-100mv to obtain the best sizing effect.
4. If no user chooses precipitant, it is better to use polyaluminum chloride as precipitant dosage 10-20 kg.
Sixth, packaging, transportation, storage 200kg and 50kg, 25kg plastic barrels, this product is valid for 6 months, should be stored in a cool place to avoid sunlight, the storage environment temperature must not be less than minus 5 degrees, more than 40 degrees above zero, Non-flammable products can be transported by road and rail.
VII. Attachments In order to help your plant reduce production costs, improve the quality of papermaking, and stabilize product quality, users are advised to use the following test methods to test the quality of the sizing agent.
1, the appearance of the test to take some samples placed in a 250ml clean transparent beaker, gently shake the beaker, so that the glass wall hung a layer of sample evenly, aiming at the light for visual inspection, the sensory fineness uniform, plastic color Jiebai ( Or with blue fluorescent light) Qualified.
2. Detection of solid content Weigh the sample (about 1g), place it in a heat-resistant container that has been weighed in advance, dry it in a burning oven at 100-105 degrees Celsius until absolutely dry, and then cool it in a desiccator. Heavy, requires accurate weighing to 0.001 grams each time, and then calculate, the formula is as follows:
N=m1×M%
In the formula: N—solid content%; m1—net weight of sample after baking; M—net weight of sample before baking.
3, PH value detection:
Take a 1-2 g sample in a 250 ml beaker, dilute it 10 times with distilled water, shake evenly, and measure with a precision pH test paper.
4, viscosity testing:
(1) Instruments: rotary viscometer;
(2) Measurement method:
A. Place the sample in a beaker or straight container with a diameter of not less than 70 mm. The temperature of the sample is controlled at 25±2 degrees and the protective frame is mounted on the instrument.
B. Rotate the optional rotor into the connecting screw and rotate the lifting knob to slowly lower the instrument until the liquid level on the rotor is level with the liquid level. Adjust the level of the instrument, press the pointer lever, turn on the motor, and turn the speed knob. Align the required number of rotations upwards with the speed index point, loosen the pointer control lever, rotate the rotor in the liquid, rotate (20-30) several times, wait for the pointer to stabilize, press the pointer lever, make the reading Fix it, then turn off the motor, keep the pointer in the reading window and read the reading.
C. When the index value is too high or too low, the rotor and speed can be changed so that the reading is preferably 30-90.
D. The range factor and the choice of rotor and speed, first estimate the viscosity range of the liquid to be measured, and then praise the appropriate rotor and speed according to the range table.
E. Calculation formula: n=kx;
Where: n - viscosity; k - coefficient; x - pointer reading 5. Particle size detection:
A: Instrument: Scanning electron microscope B: Method: Dilute 5 g sample with distilled water to 100-150 ml, observe it under a microscope after making it, record the number of particles with different particle size per unit area, and calculate according to the following formula:
j=n0×n100%;
Where: j - the percentage of a certain size of particles; n0 - the number of particles of a certain size; n - the number of all particles.
6, dispersion testing:
100 ml of distilled water was placed in a 250-ml beaker, and the sample was aspirated with a pipette. Sample 1 was added dropwise to the water, and the dispersibility was observed under static conditions.
Eight, important tips:
If Guishi uses this neutral sizing agent for neutral sizing, it is an important innovation and revolution for grass-pulp-based China. Compared with the conventional acid sizing system, this neutral sizing system can save production cost of 50-100 yuan per ton of paper, and the use of sulphuric acid is surprising as a filler, it is also conducive to increase the opacity of alkaline pulp paper, improve the paper's Printing suitability. When you need to improve product quality and reduce production costs, please call the factory service phone as soon as possible in order to provide you with products and technical services as soon as possible.