Low cost emulsion to diazo or bicrimato for textile printing.

Fields of Application

It is used in the textile industry, plastisols and for water inks in general.

Instruccions for Use

Fill the Diazo container halfway with water, preferably demineralized, to dissolve; Then fill in the missing volume. Verify that it is well dissolved. Incorporate the solution obtained into the emulsion by slowly mixing. Before application, let the prepared emulsion rest for at least two hours, allowing the release of the bubbles from the built-in air.
When a more viscous and thick emulsion is required for thick fabric screens, dissolve the diazo with 50% of the volume of water (never less than half). Tip: Filter Diazo's solution. In case of using Bichromate, slowly incorporate all the solution provided and allow to stand until removal of the occluded air.
The already emulsified frame must be dried with hot air without exceeding 40 ° C. Once copied, wash the frame with cold water and dry. All this process must be performed under yellow or red light.

Duration of Emulsions

The duration of the emulsion prepared with Diazo is about 20 days and with Bichromate of 3 to 5 days.

Exposure with Diazo

The exposure time depends on the distance, film thickness, fabric color, hours of use of the lamp, etc. With white fabrics the time is reduced to half, with respect to colored fabrics. Indicatively the value taken in our UV-exposure unit with a lamp (of 5000 watt) metal halogen with integrator to 1 meter of distance, with four hands of emulsion applied (2 external and 2 internal), on a cloth of 120 threads of color and resorting to An "exposure calculator" the result is 35 light times (approximately 2 '30 ") .In case of using fluorescent tubes increase the concentration of Diazo or Bichromate.For small details, reduce exposure to 30 light times, approximately 2 minutes.

Exposure with Bichromate

The Bichromate is more reactive so the times are reduced, reaching 25 light times approximately 1 '45 ".

Recovery

After cleaning the ink and with the dry screen, apply EMULQUIT on both sides. Allow to act for 5 minutes and then rinse with water under pressure. The use of a high-pressure cleaner machine is recommended. It is not advisable that the permanence of the product acts more than the indicated time, because when drying, it becomes difficult its recovery

Storage

Containers should be tightly closed. Store in a cool and totally dark place, avoiding temperatures higher than 35 °C.

Tips and possiblew solution

If the image does not develop or does it with some difficulty:
· Very long exposure time.
· Accidental exposure to white light before recording.
· Very high drying temperature (do not exceed 40 ° C).

If the emulsion leaves or falls from the fabric:
· Increase exposure time.
· Check that the emulsion is perfectly dry.
· Sensitized emulsion for a long time.
· Poorly sensitized emulsion. · Excessive ambient humidity.

Important note

I. The inks formulated by Pintesint SAICyF must be used exclusively with the solvents and the complementary products that it manufactures for that purpose. Due to the diversity of products in the market, the company is not responsible for the use of the same from another source.
II. The suggestions and data of this literature were elaborated in good faith, to guide the user. We recall the importance of checking the adaptability of inks and complementary products by testing before starting production. Due to the fact that the conditions of use of the products are not under our control, the present does not constitute a guarantee on the work to be done.