Introduction of the hottest imdspr in mold injecti

2022-08-22
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Imd-spr in mold injection ink introduction

1. Introduction

3c imaging company's newly developed imd-spr in mold injection ink is a one component solvent based ink. The ink formula is introduced into a special kind of high temperature resistant thermoplastic resin, which is especially suitable for the IMD field involving PC sheets and resins, and the sampling position, shape and size of the samples used for routine inspection in production are clearly specified

2. Main features include:

excellent flexibility and formability

excellent adhesion (refers to the substrate after printing and injection molding resin - especially PC, PC/ABS and ABS resin)

excellent heat resistance (refers to the whole process of injection molding)

3. Application range

electrical control panel, mobile, etc

matrix (substrate)

pc sheet, PC composite blend

4. Main characteristics and application parameters

mesh

standard color and four colors, it is recommended to use 90-150t (230-380 mesh) polyester monofilament

metal ink, and it is recommended to use 77-120t (195-305 mesh) polyester monofilament

direct lotion film and capillary film (film) can be used

5. Ink thinner

imd-spr is an ink with high viscosity, which should be diluted to the appropriate viscosity before use. For the printing of four colors and fine patterns, it is recommended to use 5-10% imd-spr-425 slow drying diluent. For standard four-color printing, use 15-15% imd-spr-425 diluent. In the printing process, the control of ink viscosity is very important. Improper dilution (ink viscosity is too high or too low) can produce a "pinhole" effect, which can also lead to poor ink leveling. When printing fine "inverse" graphics and texts, "high viscosity" and "slow drying" are the characteristics that ink must have. At this time, 5-15% imd-spr-430 slow drying paste can be introduced into the imd-spr ink system to meet the requirements of different printing

polyurethane scraper with shore hardness of 70-85 is used. The higher the hardness, the better the printing effect of fine lines. The lower the hardness, the better the "high coverage" of the printing

6. Ink coverage

using 120t/300 target edition, 70-85 square meters can be printed per kilogram of ink

7. Other additives

(1) drying

imd-spr ink dries through the mechanism of solvent volatilization. Under normal conditions, "contact without adhesion" takes 10-15 minutes. Before injection molding, the residual agent in the print must be removed, and "racy air drying" should not be advocated, because this method is easy to bring about the problem of solvent transfer (penetration) (that is, the solvent remaining in the print penetrates or transfers to its adjacent substrate). If quick drying is especially needed, hot air drying with good compressed air facilities must be used. We recommend implementing the "two-step drying method", namely:

the first step (initial drying): 80 ℃, 60 seconds (conveyor belt drying) or 80 ℃, 180. This new service enables Lubrizol to provide customers with tinting seconds (box drying)

step 2 (post drying): in the range of 75-90 ℃, box drying for 1-5 hours. For heat sensitive PC sheets, the temperature should not exceed 80 ℃, otherwise deformation may occur. For pure PC resin sheets, the temperature can be raised to 115 ℃, which significantly shortens the drying time. In this case, pay attention to the position of "registration". If it is neglected, the following operations (including molding, shearing, extrusion, etc.) may be affected. It should be reminded that if you want to get the best heat resistance by automatically switching to household batteries during the peak power consumption during the extrusion molding process, you must carefully deal with the post drying. In the later stage, it seems that drying will eliminate any residual solvent in the printed matter, and the residual solvent can cause problems related to "washout" during the extrusion molding process

(2) prepress testing

prepress testing is the responsibility of all printing manufacturers. We recommend that users spend enough time on trial printing and evaluation, and also check the quality of their substrates (such as surface free energy) before printing

packaging

inks 1kg, 4kg, 20kg

diluents 3kg, 16KG

safety

all imd-spr inks are produced from pigments that do not contain toxic heavy metals and comply with EN-71 standards. (Kunshan Yimei ink)

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