ETIQUETAS LASER



FICHA TŮCNICA 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

 

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 ▀C
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 / 35▀ 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 ▀ C for 120 minutes
150 ▀ C for 24 hours

No change
No change

- 50 ▀ 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 180▀ 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.

(*) the test stripe was not reinforced

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 ▀ C
SAE 20 Motor oil at 25 ▀ C
Sulphuric acid (30 %)
Petrol (lead free-ordinary)
95 % Relative Humidity at 38▀ 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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