A centrifuge is a machine that uses centrifugal force to accelerate the separation of different materials that need to be separated. Centrifuges are widely used in chemical, petroleum, food, pharmaceutical, mineral processing, coal, water treatment and shipbuilding sectors. Be sure to pay attention to the following aspects when using the centrifuge:
1. In order to ensure safety and centrifugal effect, the instrument must be placed on a solid horizontal surface. No items should be placed on the engineering plastic cover door; the samples must be placed symmetrically and the nut must be tightened before starting the machine.
2. Before use, check the rotor for any flaws, corrosion, etc. At the same time, check the centrifugal cup for cracks, aging, etc. If you find any doubt, stop using it immediately and contact the factory; be sure to tighten the rotor before starting the machine. Press the nut to prevent the high-speed rotating rotor from flying out and causing an accident.
3. The speed setting must not exceed the high speed to ensure the safe operation of the machine.
4. If 0.00 or other digits appear during use, the machine will not run, shut down and power off, restart after 10 seconds. After the set speed is displayed, press the operation button again, the machine will run as usual.
5. If the specific gravity of the sample to be separated exceeds 1.2 g/cm 3 , the high speed N must be corrected as follows: N = NMAX * (1.2 / sample specific gravity) 1/2, NMAX = rotor limit speed.
6. Do not open the door during the operation of the machine or the rotor is not stopped to avoid accidents.
7. The centrifuge cup must be filled with the same amount of sample. Do not run the rotor under unbalanced conditions.
8. Do not run the centrifuge for more than 60 minutes at a time.
9. The centrifuge must be grounded reliably; if the machine is not in use, unplug the power cord.
Fixative (dye-Fixing Agent)
Active Ingredient: Quaternary ammonium salt cationic surfactant
Chemical Name: Formaldehyde-free Fixing Agent
Chemical Family: PolyDADMAC
CAS No.: 26062-79-3
1.Formaldehyde-free Fixing Agent
2.Has no free formaldehyde,no peculiar smell,no irritation to skin, accord to eco request
[Description]:
Formaldehyde-free Fixative Color Fixing Agent is belongs to polymerization polyDADMAC, a cationic polymer. It can make up of macromolecular compound with dye, then achieve to improve soaping and rub fastness of fabrics. It can be used for color fixing for dyeing and printing of reactive dyed fabrics as cotton, linen, silk, and direct dyed fabrics.
[Specification]:
Appearance: Brownish yellow viscous liquid
Ionic character: Cationic
PH Value: 5-8 (1% aqueous solution)
Dissolution: Dissolve in cold water easily.
Composition: Special polymer compound
[Dilution Method]:
With 4-6 times the water and stir to dissolve dilution.
[Direction for Usage]:(To dilute finished product as an example)
A. Padding Process: 5-20g/L, temperature 40°C-60°C, PH Value:5-8, One-dip-one-nip or Double-dip-double-nip.
B. Dipping process: 1-4% (O.W.F), Room temperature 40°C-60°C, PH Value:5-8, bath ratio:1:8-12,Time: 20-30 min.
[Properties]:
1. Concentrated Formaldehyde-free Fixative Fixing Agent has good color fixing property, can obviously improve the dyeing or printing of fabric soaping, washing fastness and wet rubbing fastness.
2. Can be used for much of the association between dye fixation, anti fading property, does not affect the dyeing or printing of fabric vividness. No effect for the original feel, processing fabric has excellent hydrophilic.
3. Formaldehyde-free Fixative widely used for dyeing or printing of the direct, active dye fixing finishing, good fixation effect, especially for the red dye and Cuilan dyes, particularly prominent, fixation is better than the general Formaldehyde-free Fixative.
4. The dye PH value for a wide range, acid, alkali resistance, resistance to hard water, high temperature resistance, an environment-friendly products, does not contain formaldehyde.
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Specifications: |
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| Appearance: | Colorless, Transparent Colloid |
| Viscosity: | 100cps-80000cps |
| Solid Content: | 40%min. |
| PH (30% solution): |
3 - 7 |
| Ionic Nature: |
Cationic |
| Specific Gravity: | About 1.1 |
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Package and Storage:
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Fixative,Dye-Fixing Agent,Organic Dye-Fixing Agent,Reactive Dye-Fixing Agent
Shandong Tiancheng Chemical Co., Ltd. , https://www.tianchengchemical.com