You are here: products ·prescale film 5LWDescription: Fuji Prescale Film, a pressure-sensitive film suitable for measuring the distribution of surface contact pressures (range 5LW: from 0.006 to 0.05 MPa; from 0.06 to 0.5 kgf/cm²; from 0.87 to 7.3 psi).
Prescale pressure-sensitive film for surface contact pressure distribution measurements, range 5LW: from 0.006 to 0.05 MPa (from 0.06 to 0.5 kgf/cm²; from 0.87 to 7.3 psi)
Fuji Prescale Film 5LW: Overview
The Prescale film with a measurement range of 5LW represents one of the latest innovations introduced by Fuji Film Japan, aimed at completing the range of available measurement fields within the broader Prescale product family.
This confirms the undisputed maturity achieved by this type of product (previously Fuji Film had already introduced the 4LW and HHS ranges), whose use is now undoubtedly established in numerous application fields.
In response to specific market needs, primarily originating from the electronics and microelectronics sectors (see examples provided alongside and below), Fuji Film
Japan has developed a new pressure-sensitive film capable of operating with extremely low contact pressures. The new Prescale 5LW covers all
applications ranging from 0.006 MPa to 0.05 MPa (from 0.06 to 0.5 kgf/cm²; from 0.87 to 7.3 psi).
The ability to quickly and accurately detect surface defects, check the flatness of components, and verify the correct closure pressure of LCD display
frames for tablets, smartphones, etc., has been significantly facilitated and simplified by the Prescale pressure-sensitive film.
Although Prescale was first developed by Fuji Film in the late 1970s, countless additional applications have been successfully addressed with Prescale
(see specific sections), and even today, new applications continue to be added to those already known.
In manufacturing and production environments, numerous situations require the verification of the correct magnitude and distribution of applied pressure.
Being able to monitor this crucial parameter also extends the operational life of machines and their components, improves production quality, and in some
cases, enhances worker safety. Consistency and stability in applied pressure across various production processes thus improve the final product quality by
indirectly enabling the control and enhancement of process repeatability.
The Prescale product range offers a methodology for studying, analyzing, and verifying surface contact phenomena without requiring specific expertise or
specialized technical knowledge. The use of Prescale pressure-sensitive film is simple, fast, intuitive, and does not require special preparation.
From the first use, the image impressed with different levels of magenta red provides a clear visualization of pressure distribution.
This can be interpreted either directly by comparing with the provided colorimetric reference chart or through more accurate and repeatable electronic
measurement methods.
Numerous studies conducted by authoritative and external parties have confirmed the validity, accuracy, and repeatability of these
results, even when compared to other measurement methodologies with different technologies. Many production environments have effectively standardized
numerous internal quality checks based on the use of Prescale film.
Note that the Prescale 5LW is available in different roll sizes (310 mm x 2 meters) compared to other Prescale measurement fields produced by Fuji Film
(other rolls are 270 mm wide and come in various lengths depending on the measurement field).
Fuji Prescale Film 5LW: Key Features
immediate "mapping" of surface pressure distribution;
allows measurements between 0.006 MPa and 0.05 MPa (0.06 to 0.5 kgf/cm²; 0.87 to 7.3 psi);
high repeatability of results in measurement campaigns;
good accuracy of measurements (±10% typical, with visual assessment);
availability of optional electronic analysis systems.
Fuji Prescale Film 5LW: Technology Overview
Depending on their measurement range, Prescale films are available in two different formats: single-sheet and double-sheet. For lower measurement ranges,
Fuji Film's technology requires the use of two separate sheets (A and C), while for higher measurement ranges, a single sheet of Prescale is sufficient.
The Prescale film with a 5LW range is available only in the double-sheet version.
The double-sheet type consists of a first sheet called Film-A, which is coated with a highly uniform layer of microcapsules (proprietary PSC -
Particle Size Control technology) containing a dyeing substance, and a second sheet called Film-C, on which the fixing agent for the dyeing substance
has been applied.
When the Prescale film is subjected to surface contact stress, the dye microcapsules will break (in a quantity proportional to the applied contact
pressure and according to the distribution originating from the areas actually stressed), causing the dye to be released and immediately fixed by
the chemical reagent present on the second sheet.
Thanks to Fuji Film technology, it is possible to produce films with layers of microcapsules characterized by different and optimizable breakpoints
during production. This effectively allows for the availability of various measurement ranges while ensuring high repeatability and predictability
of the breakpoint.
In case of doubts, additional useful information can be obtained by consulting the FAQ Prescale.
Fuji Prescale Film 5LW: Technical Specifications
designation: Ultra Extreme Low Pressure;
product code: 5LW;
type: two-sheet film;
roll dimensions: 310 mm x 2 meters (length);
measurement range: from 0.006 to 0.05 MPa (from 0.06 to 0.5 kgf/cm²; from 0.87 to 7.3 psi);
accuracy (*) (**) : typically ±10%;
recommended temperature range: +15°C to +30°C (59°F to 86°F)
recommended humidity range: 20% RH to 75% RH.
(*) data typically measured with a densitometer, under environmental conditions of 23°C (73°F) and 65% RH.; (**) better accuracy can be achieved with appropriate electronic analysis systems..
Fuji Prescale Film 5LW: Usage Instructions
It is advisable to prepare the Prescale 5LW films well before the test, to allow the films (Film-A and Film-C) to acclimate to the
environmental temperature and humidity conditions in which they will be used.
Unroll an adequate number of films for the test on a clean, dry, preferably low-light surface. These preparatory actions will allow the films to
flatten out, simplifying the subsequent cutting and positioning operations described in the sequence below.
During the described operations (and those that follow), only place the glossy sides of the films on work surfaces (the matte sides are the ones that,
in combination, determine the density and distribution of the recorded coloration) to avoid any accidental contact that could imprint the films before
testing.
Cut the Prescale 5LW film to the desired dimensions using a simple pair of scissors.
Since it consists of two films (Film-A and Film-C), ensure that you cut both films that make up the Prescale Film,
making sure that the dimensions are appropriate for the area to be tested.
Remove the rubber spacers from Film-A (which are used to separate the rolled film) and then cut both films to the desired shape.
Due to the extremely high sensitivity of Prescale 5LW, it must be handled with great care to avoid accidentally affecting the films
with contact from fingers, nails, or other objects.
For the reasons previously stated, handle the Prescale 5LW with the utmost care and delicacy.
Then, overlap the two films ensuring that the cut shapes align for both films.
The films should be facing each other with their matte surfaces (and the shiny sides facing outwards);
keep this in mind during the cutting process.
After aligning the two films with their respective matte sides facing each other, place the double-layered assembly
in the area to be tested. Then, apply the contact phenomenon to be studied in order to impress the Prescale.
For details on how and when to reproduce the phenomenon under analysis, refer to the instruction sheet provided.
Evaluate the test results using the instruction sheet provided with the Prescale, which includes a colorimetric scale and reference charts.
The film will display the mapping of the contact zones recorded, showing (according to the density of the developed color) the magnitude of
the applied pressure. This can be assessed visually by comparing it with the colorimetric table provided.
THE FOLLOWING STEPS ARE OPTIONAL AS THEY REQUIRE THE USE OF ADDITIONAL ANALYSIS TOOLS THAT CAN BE PURCHASED SEPARATELY.
If more accurate and repeatable evaluations of the results obtained from Prescale are necessary, it is possible to scan the impressed films
(for example, using an Epson™ Perfection scanner) to obtain electronic format images. These images can then be easily saved, stored, and archived
(for potential future comparisons), but most importantly, they can be analyzed using optional support software.
Once digital scans of the Prescale films impressed by the analyzed event have been prepared, you can use the optional FPD-8010E support software
to perform further analyses, such as evaluating colorimetric results using false colors, rendering three-dimensional profiles, calculating the average
contact pressure, etc.
See package FPD-8010E for more details.
It is also worth noting the availability of the Prescale Safety Data Sheet and an initial guide to selecting measurement ranges, tailored to various application scenarios, complemented by an introduction to the FPD-8010E system:
balancing of rollers for special functional film production;
semiconductor adhesive process control;
cmp (chemical mechanical polishing) process for semiconductors;
automobile door seal verification.
It is also recommended to review the specific section containing the Application Notes
prepared by Fuji Film for the Prescale Film, and the additional section on Applications in Different Markets,
which summarizes the most significant applications related to various market segments successfully addressed by the Prescale Film.
You are here: products · prescale film 5LW Description: Fuji Prescale Film, a pressure-sensitive film suitable for measuring the distribution of surface contact pressures (range 5LW: from 0.006 to 0.05 MPa; from 0.06 to 0.5 kgf/cm²; from 0.87 to 7.3 psi).
Prescale Film 5lw
Ultra Extreme Low Pressure
Prescale pressure-sensitive film for surface contact pressure distribution measurements, range 5LW: from 0.006 to 0.05 MPa (from 0.06 to 0.5 kgf/cm²; from 0.87 to 7.3 psi)
Fuji Prescale Film 5LW: Overview
The Prescale film with a measurement range of 5LW represents one of the latest innovations introduced by Fuji Film Japan, aimed at completing the range of available measurement fields within the broader Prescale product family.
This confirms the undisputed maturity achieved by this type of product (previously Fuji Film had already introduced the 4LW and HHS ranges), whose use is now undoubtedly established in numerous application fields.
In response to specific market needs, primarily originating from the electronics and microelectronics sectors (see examples provided alongside and below), Fuji Film
Japan has developed a new pressure-sensitive film capable of operating with extremely low contact pressures. The new Prescale 5LW covers all
applications ranging from 0.006 MPa to 0.05 MPa (from 0.06 to 0.5 kgf/cm²; from 0.87 to 7.3 psi).
The ability to quickly and accurately detect surface defects, check the flatness of components, and verify the correct closure pressure of LCD display frames for tablets, smartphones, etc., has been significantly facilitated and simplified by the Prescale pressure-sensitive film. Although Prescale was first developed by Fuji Film in the late 1970s, countless additional applications have been successfully addressed with Prescale (see specific sections), and even today, new applications continue to be added to those already known. In manufacturing and production environments, numerous situations require the verification of the correct magnitude and distribution of applied pressure.
Being able to monitor this crucial parameter also extends the operational life of machines and their components, improves production quality, and in some cases, enhances worker safety. Consistency and stability in applied pressure across various production processes thus improve the final product quality by indirectly enabling the control and enhancement of process repeatability. The Prescale product range offers a methodology for studying, analyzing, and verifying surface contact phenomena without requiring specific expertise or specialized technical knowledge. The use of Prescale pressure-sensitive film is simple, fast, intuitive, and does not require special preparation. From the first use, the image impressed with different levels of magenta red provides a clear visualization of pressure distribution. This can be interpreted either directly by comparing with the provided colorimetric reference chart or through more accurate and repeatable electronic measurement methods.
Numerous studies conducted by authoritative and external parties have confirmed the validity, accuracy, and repeatability of these results, even when compared to other measurement methodologies with different technologies. Many production environments have effectively standardized numerous internal quality checks based on the use of Prescale film. Note that the Prescale 5LW is available in different roll sizes (310 mm x 2 meters) compared to other Prescale measurement fields produced by Fuji Film (other rolls are 270 mm wide and come in various lengths depending on the measurement field).
Fuji Prescale Film 5LW: Key Features
Fuji Prescale Film 5LW: Technology Overview
Depending on their measurement range, Prescale films are available in two different formats: single-sheet and double-sheet. For lower measurement ranges, Fuji Film's technology requires the use of two separate sheets (A and C), while for higher measurement ranges, a single sheet of Prescale is sufficient. The Prescale film with a 5LW range is available only in the double-sheet version. The double-sheet type consists of a first sheet called Film-A, which is coated with a highly uniform layer of microcapsules (proprietary PSC - Particle Size Control technology) containing a dyeing substance, and a second sheet called Film-C, on which the fixing agent for the dyeing substance has been applied.
When the Prescale film is subjected to surface contact stress, the dye microcapsules will break (in a quantity proportional to the applied contact pressure and according to the distribution originating from the areas actually stressed), causing the dye to be released and immediately fixed by the chemical reagent present on the second sheet. Thanks to Fuji Film technology, it is possible to produce films with layers of microcapsules characterized by different and optimizable breakpoints during production. This effectively allows for the availability of various measurement ranges while ensuring high repeatability and predictability of the breakpoint.
In case of doubts, additional useful information can be obtained by consulting the FAQ Prescale.
Fuji Prescale Film 5LW: Technical Specifications
(*) data typically measured with a densitometer, under environmental conditions of 23°C (73°F) and 65% RH.;
(**) better accuracy can be achieved with appropriate electronic analysis systems..
Fuji Prescale Film 5LW: Usage Instructions
It is advisable to prepare the Prescale 5LW films well before the test, to allow the films (Film-A and Film-C) to acclimate to the environmental temperature and humidity conditions in which they will be used.
Unroll an adequate number of films for the test on a clean, dry, preferably low-light surface. These preparatory actions will allow the films to flatten out, simplifying the subsequent cutting and positioning operations described in the sequence below. During the described operations (and those that follow), only place the glossy sides of the films on work surfaces (the matte sides are the ones that, in combination, determine the density and distribution of the recorded coloration) to avoid any accidental contact that could imprint the films before testing.
THE FOLLOWING STEPS ARE OPTIONAL AS THEY REQUIRE THE USE OF ADDITIONAL ANALYSIS TOOLS THAT CAN BE PURCHASED SEPARATELY.
See package FPD-8010E for more details.
Fuji Prescale Film 5LW: Reference Documentation
It is also worth noting the availability of the Prescale Safety Data Sheet and an initial guide to selecting measurement ranges, tailored to various application scenarios, complemented by an introduction to the FPD-8010E system:
Fuji Prescale Film 5LW: Main Applications
The Prescale Film with 5LW Field has been advantageously used in the following application situations:
It is also recommended to review the specific section containing the Application Notes prepared by Fuji Film for the Prescale Film, and the additional section on Applications in Different Markets, which summarizes the most significant applications related to various market segments successfully addressed by the Prescale Film.
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