How to improve the batch qualification rate of ink with tris raw materials

How to improve the batch qualification rate of ink with tris raw materials

1.Production pain points: unstable batches and high rework rates

The previous batch was good, how did this batch have problems? "- This is a common saying heard in the production workshop.

In the production process of industrial ink, pH control is a key variable that affects batch consistency. Minor fluctuations in pH may lead to:

Poor dispersion of pigments, resulting in flocculation and sedimentation;

Dye hydrolysis, color change;

Abnormal ink viscosity affects printing suitability

Increased risk of nozzle blockage;

The core of pH control lies in the selection and use of buffering agents.

2.Why can Tris help improve batch pass rates?

2.1 Buffer capacity ensures pH stability

The effective buffering range of Tris is pH 7.0-9.0-4. In the ink production process, whether it is pH fluctuations caused by differences in raw material batches, environmental temperature changes, or operational errors, Tris can bring the pH back to a stable range through its buffering effect.

by comparison:

Ammonia water: volatile, pH continuously decreases, unable to provide stable buffering

Sodium hydroxide: Strong base, no buffering capacity, excessive addition can cause severe pH drift

Triethanolamine: It has a certain buffering capacity, but its molecular weight is large and the amount added is high, making it less economical than Tris

2.2 Excellent solubility and filtration

In the filtration process of ink production, inks containing Tris exhibit excellent membrane filter filtration performance. This means: fast filtration speed and high production efficiency; Low frequency of filter replacement and low cost of consumables; The residual particles of filtered ink are minimal, and the risk of nozzle clogging is low.

3.Tris usage guide for production workshop

3.1 Feeding sequence

Suggest adding Tris in the early stages of ingredient preparation:

Add deionized water into the reaction vessel

Add Tris and stir until completely dissolved (Tris has excellent water solubility and can dissolve quickly at room temperature)

After confirming that the pH reaches the target range, add other components

During the subsequent component addition process, regularly check the pH and make necessary adjustments if necessary

3.2 Control of Addition Quantity

The recommended dosage for Tris is 0.1% to 2% by mass. Suggestion:

New formula: Start trial production from low to medium addition levels (0.3% -0.5%) and gradually optimize

Mature formula: Strictly control the weighing accuracy of each batch of Tris (it is recommended to use an electronic scale with an accuracy of ≥ 0.01kg)

3.3 Incoming Inspection

After each batch of Tris arrives, it is recommended to conduct the following rapid inspections:

4.Common production problem troubleshooting

New Desheng Tris: Making Production More worry free

Tris products from Hubei Xindesheng Material Technology Co., Ltd.:

Batch consistency ≤ 1%: Reduce production fluctuations caused by differences in raw materials

Excellent water solubility: rapid dissolution at room temperature, reducing ingredient time

COA for each batch: provided with the goods, with evidence for incoming inspection

Spot supply: Annual production capacity of 2000 tons, ensuring uninterrupted production