Vijayneha Polymers INK Chemist Interview Questions, Process, and Tips

Consumption of ink varies depending on the type of ink, usage frequency, and size of the writing instrument.

• Consumption of ink is higher in porous tip pens compared to ballpoint pens.

• Frequent use of bold or thick lines will result in faster ink consumption.

• Larger nib sizes in fountain pens will use more ink per stroke.

• Specialty inks like metallic or glitter may have higher consumption rates.

• Refillable ink cartridges ca

Density of color refers to the concentration of colorants in a given volume of solution or material.

• Density of color is typically measured in terms of grams per cubic centimeter (g/cm^3).

• Higher density of color indicates a higher concentration of colorants in the material.

• Density of color can affect the vibrancy and opacity of the color in a solution or material.

• For example, a paint with a higher density of color will ...read more

Light fastness of color refers to the ability of a color to resist fading or changing when exposed to light.

• Light fastness is important in industries like textiles, printing, and art conservation.

• Factors affecting light fastness include the type of dye or pigment used, the substrate, and the intensity of light exposure.

• Examples of light fast materials include certain synthetic dyes and pigments designed for outdoor use...read more

Handling man power involves effective communication, delegation, and motivation to ensure productivity and teamwork.

• Effective communication is key to ensure everyone is on the same page

• Delegation of tasks based on strengths and skills of individuals

• Motivating employees through recognition and rewards

• Providing training and development opportunities to enhance skills

• Creating a positive work environment to foster teamwork

To increase color strength when cylinder depth is low, increase pigment concentration, adjust binder ratio, and optimize milling process.

• Increase pigment concentration to enhance color intensity

• Adjust binder ratio to improve color adhesion and saturation

• Optimize milling process to ensure proper dispersion of pigments

• Consider using color enhancers or additives for a more vibrant hue

GSM control is achieved by adjusting the weight of the paper used in printing.

• GSM (grams per square meter) refers to the weight of the paper used in printing.

• Higher GSM values indicate thicker and heavier paper, while lower GSM values indicate lighter paper.

• Printers can adjust GSM by selecting different types of paper or adjusting the settings on the printer.

• GSM control is important for achieving desired print quality

Shade matching time is the process of selecting the correct color or shade for a specific application, such as matching paint or cosmetics.

• Use natural light for accurate shade matching

• Compare the shade to a color chart or swatch

• Consider the undertones of the shade for a better match