Black and white adhesive tape is a kind of masking tape, which is mainly used in optical display devices for pasting and shading. It is made of PET and coated on both sides.
Coating amount 20.13/19.56, initial force 1/1 (GB 4852), black surface adhesion>1.79KG/IN (GB/T 2792), retention force>20H (GB 4851), peel force 6 (90 ° peel method), black surface shading rate>99.9%, white surface reflectance>88, use temperature - 10-100 ℃, tensile strength 200-270 N;It has the advantages of moisture resistance, UV resistance and good shading effect, and has moderate viscosity, leaving no residue after tearing. P65BW and X653-2 black and white adhesive are widely used in notebook computers and mobile phonesPDA, digital and other display components, backlight frame fixation and shading effect, mainly used for color screen mobile phone backlight, GPS backlight, etcElectronic display screenManufacturing industry.
classification
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► P65BW and X653-2 black and white adhesive is a double-sided masking adhesive. The thickness of the black and white adhesive is 0.065MM, and the material is PET. The adhesive force on the white side is ＞ 1.9KG/IN, the adhesive force on the black side is ＞ 1.7KG/IN, the retention force is ＞ 20H, the shading rate is ＞ 99.9%, the reflectivity is ＞ 86%, the use temperature is - 10-100 ℃, and the tensile strength is 200-270 Newton;X653-2 black and white glue adopts medium releasePET release filmIt has good processing performance during punching and rotary cutting, and is not easy to break in high-temperature and high-speed operation.There will be no glue overflow.P65BW and X653-2 black and white adhesive have the following characteristics:
► The thickness is very accurate, and the thickness of the whole material is very uniform.
► Excellent processability, which can be cut into precise die-cutting shape, or bonded by hand
► High cutting strength
► It is mainly used for pasting the cloth on the side of the product light source or the side of the product, which is mainly used to block and reflect light
P65BW and X653-2 black and white glue are widely used in notebook computers.mobile phone.PDA. The backlight frame of digital and other display components is fixed and has shading effect.
Technical Data Sheet
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Revision date of the 5th edition: December 1, 2011
Product description: P65BW and X653-2 are a double-sided tape made of special black and white film as the base material and compounded with special black and white PET base material. They have excellent comprehensive performance, shading and reflection functions. The white side almost does not absorb light, the black side has good shading effect, and there is no needle point to transmit light. They are suitable for fixing LCD and backlight.
Physical properties of materials (not used for standard specifications)
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Material description
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General physical properties
Glue type
Acrylic acid
Adhesion to steel plate (peeling)
Black side: 15.5N/25mm
White surface: 18.5N/25mm
GB/T2792­1998
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base material
Transparent PET
Static shear force (hold)
1000g，6.4cm²,
1400min+；
thickness
adhesive tape
65µm
GB/T4851­1998
Release material
25µm+75µm
Initial adhesion (initial adhesion)
≥100mm
total
165µm
GB/T4852­ 2002 Chute Method
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White reflectivity
88%
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Blackface shading
99.9%
Release material
Transparent PET/Transparent PET
Solvent resistance
good
Tape color
White side/black side
Temperature resistance
100℃
quality guarantee period
12 months from the date of shipment, stored at 21 ℃ (70 ° F) and 50% relative humidity
product mix
Transparent PET release film
Acrylic adhesive
Special black and white PET substrate
Acrylic adhesive
Transparent PET release film
Suitable for use
Fixation of LCD and backlight module.It is used for shading and fixing the backlight LCD.
Dimensions
Tape thickness (µ m)
Width (mm)
Length (m)
sixty-five
one thousand and twenty
fifty
Note: Other dimensions (width, extra length) are acceptable, please contact us.
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Product specification
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P65BW and X653-2­Black and white film tape
Application Skills
1. Bond strength depends on
2. In order to obtain the best adhesion 3Ideal application temperature range
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Bonding
Force, the bonding surface must
The range is 21 ℃­38℃
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Glue quantity, stable during operation
Clean, dry and even
（70°F­100°F ）.
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Solid pressure can be raised
Evenly level.Typical cleaning
Initial use of adhesive
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High adhesive contact
The solvent is isopropanol and
With adhesive surface, no
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Performance and bonding strength
Water.When handling solvents
10 ℃ is recommended
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Degrees.
Use appropriate measures.
(50 ° F) below
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OK, because the adhesive will change
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Too hard to stick
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Paste.Nevertheless, such as
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Proper use, at low temperature
Can also achieve
Get satisfactory results.
Product description:
The values listed are determined by the standard test method, and are average values, not for the purpose of standard specifications.Our suggestions on the use of our products are based on credible tests, but we require you to conduct your own tests to determine the suitability of the products for your use.
Important:
Please try out in small batches before using. If there is any quality problem, stop using immediately and notify our technician.
Authority of compensation and liability:
For products that have been used, our company only replenishes the fabric, and does not assume joint liability arising from the use of materials.
Test report
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P65BW and X653-2 black and white double-sided tape
Tape color
Black&White
Blackout
The visible light wavelength is good within the range of 400-700rm
tape thickness
65um
Transmittance
0.006%
Tensile strength
157MPA
elongation
125%
P65BW and X653-2 adhesion
classification
noodles
Company
Standard value
After 30 minutes at normal temperature
White flour
gf/in
two thousand and two hundred
Black face
one thousand and six hundred
After 72 hours at 85 ℃
White flour
three thousand and two hundred
Black face
two thousand and one hundred
At 85 ℃, humidity 90%
After 120 hours
White flour
three thousand
Black face
two thousand
Coating amount
g/㎡
20±3
18±3
twenty point one three
nineteen point five six
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Initial force
#
≥1
1/1
GB 4852
Adhesion
kg/in
≥0.8
1.79/1.32
GB/T 2792
Retentive force
hours
≥8
twenty
GB 4851
Peeling force
g/in
10±6
six
90 ° peel method
matters needing attention:
1. Good processing performance in punching and rotary cutting.2. There will be no glue overflow.
Shelf life: 2 years (stored in a constant temperature room with temperature of 22 ℃ and humidity of more than 50%)
Die cutting process of black and white adhesive
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As long as you master the basic principles of die-cutting process, constantly summarize and master various skills in actual production and operation, be familiar with the performance of production equipment, and strictly implement the requirements of production process, you can eliminate various problems in production in a timely and correct manner, creating favorable conditions for the smooth production of high-quality die-cutting indentation products.Die cutter, indentation line, elastic rubber strip and pressure are the major factors affecting the cutting process. After analyzing the above faults, we can see that the problems in production are mainly related to these factors. The selection and application rules are summarized as follows:
1 Die cutter
The die-cutting cutter can be divided into single side and double side, the cutting edge can be divided into tooth shape and linear shape, and its thickness can also be divided into several specifications from 0.5mm to 1.5mm.The key to ensure the quality of die-cutting is to select the appropriate type and specification of die-cutting cutter.High quality die cutter steel, excellent decarburization treatment, good heat treatment, high precision.The selection of die cutter shall be based on the product specifications and materials, customer requirements and the complexity of the box type.Circular die-cutting is usually used with a toothed knife. The thicker the cardboard is cut, the fewer teeth per unit length of the die-cutting knife should be, and vice versa, in order to achieve the best pressure.
2 Indentation line
As with the selection of die cutter, the selection of indentation line is also very critical. The obscure indentation or fracturing of products are often caused by improper selection of indentation line.High quality indentation steel wire shall be of moderate hardness, strong stability, smooth thread end, symmetrical arc axis, low height and thickness deviation, and complete specifications.There are many specifications for the height of the indentation line, which should be selected according to the thickness of the cardboard to be indented (note:Corrugated cardboardThe corrugated shall be flattened to measure the thickness).
Generally, the formula should be followed: the height of indentation line, the height of two die cutter, the thickness of the pressboard to be cut, and the thickness of the pad paper. The supplier should provide relevant indentation line selection marks;It is recommended for reference, but it shall be flexibly selected according to its own situation in practical application.
1. The feeder sends the bottom material to the single die-cutting machine, places the black and white film loaded material on the feeding rack of the single die-cutting machineBlack and white double-sided adhesive tapeThe release paper with white surface is discharged and reeled, and the white surface of black and white double-sided adhesive is bonded with polyester substrate through a single seat die-cutting machine.
2. Punch the positioning hole, inner frame and product edge waste after die-cutting machine.
3. After three laminating machines, the first step is pastingMasking tapeThe waste of the black and white double-sided protective film of the inner frame of the row, the second step is to paste the waste of the black and white double-sided adhesive of the inner frame of the polyester row, and at the same time, the waste of the frame of the black side protective film of the original black and white double-sided adhesive is to be discharged, and the third step is to re paste a layer of polyester protective film.
4. Punch the outer frame of black and white glue with small hole positioning.
5. Waste is discharged through the two seat laminating machine.
