SG#3000, SG#3900 series ink, which are used along with acrylic synthetic resin, boast their excellence in gloss. They work best when attached to silk screen for plastics manufactured by mixing and distributing high class pigment, especially acrylic, ABS, PC, PS, and vinyl. This is one-component type air drying ink recommended from sophisticated products to various electronic products which require heavy chemical and alcohol resistance. They are also efficient when applied to materials difficult to use due to erosion or breakage. These two types of inks are adapted to PAD printing as transition is easily performed.
Moreover , SG#3900 ink is the most suitable type of ink for stickers on helmets as it involves the first and second stage of coating process by water transfer method.
Especially, SG#3900 ink utilizes state-of-the-art pigments, which require a decent amount of light resistance, to apply to outdoor advertisements; the ink guarantees more than three years of efficiency.

 
Main features
ITEM CONTENTS

Ink type

Air-drying, Acrylic synthetic resin, SG#3000 general, SG#3900 pad and sticker or products requiring light resistance for outdoor

Applicable materials

Plastic products such as ABS, PS, PC, Acryl requiring alcohol resistance / PAD, sticker for helmet

Gloss

High glossy (controllable to semi-gloss, non-gloss by matte agent)

Drying time

Air drying 5~20 min / heat drying 1~5 min at 60
 
Specifications of Ink
o. Appearance: Viscous fluid
o. Solid (%): 45~70
o. Viscosity (cPs): 17,000 ~ 20,000 cPs (at 25C)
o. Specific Gravity: 0.900 ~ 1.500
o. Flash point: 42~46C
o. Boiling point: 165~220C
 
Outdoor Availability

The weathering test of high-grade ink (color #005 series) has been executed by Accelerated Weathing Test Machine of the U.S. ATLAS, CXWA Weather - o - meter (Norm Sunshine Carbon arc, 633C BP, 18 minutes/ 120 minutes Spray). The weathering level of all color ink proves to be excellent in maintaining 5 grade of ISO Gray scale (1~5 grade) at 3,000hr, and this test result shows weathering can be guaranteed at least three to five years.
For more excellent weathering and light resistance, Samsung Chemical offers 810 Medium Ink for top coating.

 
Color Shade
1) Standard 16 color (SG# 3000)
2) High grade 16 color (SG# 3900)
 
105 WHITE 655 VIOLET ̿÷
215 LEMON YELLOW ûȲ 335 MID GREEN
235 MID YELLOW Ȳ 355 FAST GREEN Ư
255 DEEP YELLOW Ȳ 465 ROYAL BLUE äû
525 GOLDEN RED Ȳ 435 MID BLUE û
535 BRIGHT RED 455 DEEP BLUE û
555 DEEP RED 715 B. BLACK
615 MAGENTA Ÿ 805 MEDIUM
625 PINK ũ      
 
4 Color : P245 Process Yellow ο
P545 Process Magenta Ÿ
P445 Process Cyan þ
P745 Process Black
 
3) Fluorescent Color
4) Silver Color , Gold Color
5) Sparkling Color
6) Special Color , Mixing Color , Chameleon color
 
Ink film test results
Item Result Test Method
Hardness HB Mitsubishi Uni pencil 45 x 500g
Adhesion 100/100 100 columns, Opp Tape, close contact
Heat resistance Not affected 80C x 10hrs, adhesion, gloss, no discoloration
Constant temperature/ humidity Not affected 60C x 90% x 100hrs, leave it for I hour and attach it
Acid resistance Not affected Soaked in 5% HSO x 60 for 24 hours
Alkali resistance Not affected Soaked in 5% NaOH x 60 for 24 hours
Alcohol resistance Not affected Rubbing 30 times with 99.9% methanol dampened cloth 1kg weight
Cosmetics resistance Not affected 60C x 24 hours after leaving it for 1 hour, 500g 50 times
 

Test Method

1) Used Ink : SG#3000 725 R. Black

2) Thinner/ Thinner Ratio : 5305 Thinner, Ink/Thinner = 100 / 20

3) Drying condition : Drying for 10 min at 60, and air drying for 24 hours / 7 days

4) Screen mesh : 305 per inch

5) Test materials : ABS, PC, Acrylic

6) Hardness Test : Lightly push Mitsubishi Uni pencil at 45C with 500g Try 3 times, and measure the pencil hardness in case that there are no marks of pencil after erasing pencil mark with an eraser.

7) Attachment Test : Scribe 100 pores by 1mm, stick OPP Tape, and apply instant power at 90 and rapidly remove it. Read the case of no-splitting at printed film as 100/100.

8) Heat resistance Test : Put printed specimen at 80 oven for 10 hours,and leave it for 1 hour and read the change of gloss, color and adhesion test.

9) Test of constant temperature and humidity : After 100 hours at thermostat and humid-stat of 60 and 90% humidity, leave it for 1 hour and make an adhesion test.

10) Test of acid resistance : soaked in 5% HSO solution at 60 for 10 hours, wash it out with clean water, leave it for 1 hour, and measure adhesion, color and gloss chance.

11) Test of alkali resistance : soaked in 5% NaOH solution at 60 for 10  hours, wash it out with clean water, leave it for 1 hour,  and measure adhesion, color and gloss chance.

12) Test of alcohol resistance : Wrap the gauze with the pendulum of 1 kg weight and 133mm cross-sectional area (D 13mm), soak 99.9% methanol and read the number of reciprocal rubbing at 30 times/min.

13) Test of cosmetics resistance : Coat DeBon Raggber Sun Block Cream of the LG Chemical (SPF 39) on the printed part, leave it for 1 hour after 24 hours at 60C, wrap the gauze with the pendulum of 500g weight and 133 mm cross-sectional area (D 13mm), and make reciprocal rubbing 50 times.