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ETIQUETAS LASER
FICHA TÉCNICA CINTA 3M TM
7848
(Color gris plata
marcado en negro)
Product Description
3M TM 7848 label
Stock is a specialty film stock that can be inscribed by a laser
beam - shich is designed to ablate the top layer off to create an
inverse image. Since the laser is also able to cut the entire label,
it provides high flexibility for producing just in time various
formats.
Construction
|
Facestock
|
Adhesive
|
Liner |
| Top Layer |
12 microns
(0,47 mil)
Matte Silver
|
30 microns
(1.2 mils)
#350 (Hi-Holding)
|
80 microns
(3.2 mils)
Densified Kraft (glassine)
|
| Base Layer |
50 microns
(2.0 mils)
Black
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|
Features
- Modified Acrylate facestock for long-term durability and excellent
temperature, chemical resistance, excellent convertibility (kiss
cutting).
- Markable with all Nd-Yag laser marking equipments available
on the market.
- Matte surface provides good printability resulting in 100 %
bar code readability.
- Two-layer construction and engraved inscription provide long
term readability, abrasion resistance and excellent image contrast.
- Brittle facestock material provides destructibility to meet
security labelling requirements.
- # 350 modified acrylic adhesive offers good adhesion on LSE/HSE
plastics with high initial tack.
- UL-approval: ongoig
- CSA-approval: on going
Application
- Durable goods marking.
- Depending on the specific application alcso can be used for
tamper-indication. In most cases, labels cannot be transferred
without damage once they have been applied.
Physical Properties
| Minimum Application Temperature |
+ 4 ºC |
| Weight (film and Adhesive) |
90-100 g/m2 |
| Elongation at Break |
ca. 6 % |
| Tensile Strength |
ca 60 N/25,4 mm2
(elongation at break and tensile strength have been
tested according to DIN 53455/ISO 527, 300 mm/min). |
| Spraying with Salt Water |
168 h / 5% concentration / 35º C - No change |
| Storage / Shelf Life |
2 years storage stability if stored at room
temperature conditions in cool, dry and sun-protected rooms. |
Temperature Resistance
(When applied to aluminium Surfaces)
|
Temperature Resistance
|
Low Temperature
Resistance |
|
200 º C for 120 minutes
150 º C for 24 hours
|
No change
No change
|
- 50 º C |
No change |
Adhesive Performance / Bond Strength
| Sustrate |
N/25,4
mm |
Afea Steel
Aluminium
Policarbonate
ABS
PVC
Polyethilene |
40
33
26
30
17
11(*) |
|
Measured according to
DIN 30646, part 1 (jaw separation speed 300 mm/min, at 180º
angle, film width: 25.4 mm).
Since the facestock is destructible and can fracture during
adhesion testing, a support fil is laminated to the facestock
(onto side opposite adhesive) and adhesion testing completed.
Adhesive performance for the individual case can depend on the
texture of the substrate surface. The above adhesive values
are average values. They are not appropiate for specifications.
|
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(*) the test stripe was not reinforced
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Weather Resistance
(Thermal eyeling)
Aceleration test in the Xenon device
> 1200 h according to DIN 53387: No Change
> 2000 h according to DIN 53387: Ongoing
Resistance to chemicals and Solvents
| Substance |
Exposure Time |
Result |
Distilled Water at 65 º C
SAE 20 Motor oil at 25 º C
Sulphuric acid (30 %)
Petrol (lead free-ordinary)
95 % Relative Humidity at 38º C |
390 h
250 h
300 h
1 h
250 h |
No change
No change
No change
No change
No change |
Resistance to Abrasion
- Abrasion test tabor/Abraser (applied to aluminium)
CS 10 wheels, 500 gr per wheel, 50 rpm, up to 350 cycles - No
change
- Crock meter Test:
| Substance |
Cycle |
Result |
n-heptane
Ethanol
MEK
Toluene
ASTM oil |
200
20
20
10
100 |
Ok!
Ok!
Ok!
Ok!
Ok! |
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