You are here: products ·prescale film LWDescription: Pressure-sensitive Fuji Prescale Film, suitable for measuring the distribution of surface contact pressures (range LW: from 2.5 to 10 MPa (25 to 100 kgf/cm²; 363 to 1450 psi)).
Pressure-sensitive Prescale film for measuring the distribution of surface contact pressures, range LW: from 2.5 to 10 MPa (25 to 100 kgf/cm²; 363 to 1450 psi)
Fuji Prescale Film LW: Overview
Although the Prescale film was developed by Fuji Film in the late 1970s, numerous additional applications have been successfully addressed using Prescale Film
(see relevant sections), and even today, many years after its introduction, new applications continue to be added to the known ones.
To better accommodate the wide range of possible uses for Prescale, Fuji Film has developed this product line, expanding it across various measurement ranges
(which have been further broadened in recent years). This comprehensive range of products can practically cover any application. Specifically, Prescale LW film
can be used for applications with contact pressures ranging from 2.5 to 10 MPa (25 to 100 kgf/cm²; 363 to 1450 psi).
There are numerous situations in manufacturing and production where verifying the correct amount of applied pressure is crucial. Additionally, being able to
control this important parameter can extend the operational life of machinery and its components, improve production quality levels, and, in some cases, enhance
personnel safety. The consistency and stability of applied pressure values across various production processes can increase the final quality of the product, as
they indirectly allow for better control and improvement of process repeatability.
The Prescale product range is essentially a methodology for study, analysis, and verification that can be advantageously used in the context of surface contact
phenomena without requiring specific expertise or technical knowledge.
The use of Prescale pressure-sensitive film is very simple, quick, and intuitive, and does not require special preparation. From the first use, the image impressed
with different levels of magenta red will clearly visualize the distribution of pressures. This can be interpreted by directly comparing it with the reference
colorimetric table provided, 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
with other survey methodologies characterized by different technologies. Many production realities have, in fact, "normalized" numerous internal quality checks
based on the use of Prescale film.
Fuji Prescale Film LW: Key Features
immediate "mapping" of surface pressure distribution;
capable of measurements ranging from 2.5 to 10 MPa (25 to 100 kgf/cm²; 363 to 1450 psi);
high repeatability of results obtained in measurement campaigns;
good measurement accuracy (typically ±10% with visual estimation);
availability of optional electronic analysis systems.
Fuji Prescale Film LW: 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 technology requires the use of two different sheets (Film-A and Film-C), while for higher measurement ranges, Prescale film is available as a
single sheet.
The Prescale film with the LW range is only available in the double-sheet type. This double-sheet configuration consists of a first sheet called Film-A,
on which a highly homogeneous layer of microcapsules (using proprietary PSC - Particle Size Control technology) containing a coloring agent is deposited.
The second sheet, Film-C, is coated with the fixing agent for the coloring substance.
When the Prescale film is subjected to surface contact stress, the dye microcapsules will rupture (in a quantity proportional to the applied contact pressure
and according to the distribution generated by the stressed areas), 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 microcapsule layers characterized by different and optimizable
rupture points during production, essentially providing a range of measurement fields while ensuring high repeatability and predictability of the rupture
point.
If you have any doubts, further useful information can be obtained by consulting the FAQ Prescale
Fuji Prescale Film LW: Technical Specifications
designation: low pressure;
product code: LW;
type: double-sheet film;
roll dimensions: 270 mm x 10 meters (lenght);
measurement range: from 2,5 to 10 MPa (from 25 to 100 kgf/cm²; from 363 to 1450 psi);
accuracy (*) (**) : tipically ±10%;
recommended temperature range:: from +20 °C to +35 °C (from 68°F to 95 °F)
recommended humidity range: from 35% RH to 80% 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 LW: Usage Instructions
It is advisable to prepare the Prescale LW films well in advance of the test to allow the films (Film-A and Film-C) to acclimate to the
ambient temperature and humidity conditions where they will be used. Unroll a sufficient length of film for the test on a clean, dry surface,
preferably in a dimly lit area. This preparation allows the films to lay flat, making subsequent cutting and positioning operations easier, as
detailed in the steps below. During these operations, and any that follow, ensure the shiny sides of the films are the only ones touching work
surfaces. The matte sides are responsible for recording color density and distribution, and accidental contact could prematurely mark the films
before testing.
Proceed to cut the Prescale LW films to the desired dimensions using a simple pair of scissors. Since the Prescale Film consists of two films
(Film-A and Film-C), ensure that both films are cut to the same size, making sure that the dimensions are appropriate for the area to be tested.
For the reasons previously mentioned, handle the Prescale LW with utmost care and delicacy. Overlay the two films, ensuring that the cut shapes align
perfectly for both films. The films should be placed together with their matte sides facing each other (with the glossy sides facing out). Be sure to
account for this during the cutting process.
After aligning the two films with their respective matte sides facing each other, place the resulting double-layered film in the area to
be tested. Then, apply the contact phenomenon under study to impress the Prescale. For details on how and when to reproduce the phenomenon,
refer to the instruction sheet provided.
Evaluate the results of the test using the instruction sheet provided with the Prescale, which includes a colorimetric scale and
reference charts. The film will display a map of the contact areas, recording the magnitude of the applied pressure based on the density
of the developed color. This can be visually assessed using the colorimetric chart 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:
La pellicola Prescale con campo LW è stata vantaggiosamente adoperata nell'ambito di situazioni applicative quali le seguenti:
calibration of contact pressures between molds and dies;
monitoring of contact pressures between rollers and surfaces;
calibration of contact pressures in calender rollers;
study and verification of tire footprints;
study and verification of contact pressures between brake discs and pads;
verification of pressures developed during the winding of high-performance films;
calibration of contact pressure for paste, adhesive, and coating distribution spatulas;
study and analysis of pressure distribution and magnitude generated by impacts on surfaces;
study and analysis in medical fields (e.g., plantar pressure, orthopedics, ergonomics, etc.).
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 LW Description: Pressure-sensitive Fuji Prescale Film, suitable for measuring the distribution of surface contact pressures (range LW: from 2.5 to 10 MPa (25 to 100 kgf/cm²; 363 to 1450 psi)).
Prescale Film LW
Low Pressure
Pressure-sensitive Prescale film for measuring the distribution of surface contact pressures, range LW: from 2.5 to 10 MPa
(25 to 100 kgf/cm²; 363 to 1450 psi)
Fuji Prescale Film LW: Overview
Although the Prescale film was developed by Fuji Film in the late 1970s, numerous additional applications have been successfully addressed using Prescale Film (see relevant sections), and even today, many years after its introduction, new applications continue to be added to the known ones.
To better accommodate the wide range of possible uses for Prescale, Fuji Film has developed this product line, expanding it across various measurement ranges
(which have been further broadened in recent years). This comprehensive range of products can practically cover any application. Specifically, Prescale LW film
can be used for applications with contact pressures ranging from 2.5 to 10 MPa (25 to 100 kgf/cm²; 363 to 1450 psi).
There are numerous situations in manufacturing and production where verifying the correct amount of applied pressure is crucial. Additionally, being able to
control this important parameter can extend the operational life of machinery and its components, improve production quality levels, and, in some cases, enhance
personnel safety. The consistency and stability of applied pressure values across various production processes can increase the final quality of the product, as
they indirectly allow for better control and improvement of process repeatability.
The Prescale product range is essentially a methodology for study, analysis, and verification that can be advantageously used in the context of surface contact
phenomena without requiring specific expertise or technical knowledge.
The use of Prescale pressure-sensitive film is very simple, quick, and intuitive, and does not require special preparation. From the first use, the image impressed
with different levels of magenta red will clearly visualize the distribution of pressures. This can be interpreted by directly comparing it with the reference
colorimetric table provided, 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
with other survey methodologies characterized by different technologies. Many production realities have, in fact, "normalized" numerous internal quality checks
based on the use of Prescale film.
Fuji Prescale Film LW: Key Features
Fuji Prescale Film LW: 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 technology requires the use of two different sheets (Film-A and Film-C), while for higher measurement ranges, Prescale film is available as a single sheet. The Prescale film with the LW range is only available in the double-sheet type. This double-sheet configuration consists of a first sheet called Film-A, on which a highly homogeneous layer of microcapsules (using proprietary PSC - Particle Size Control technology) containing a coloring agent is deposited. The second sheet, Film-C, is coated with the fixing agent for the coloring substance.
When the Prescale film is subjected to surface contact stress, the dye microcapsules will rupture (in a quantity proportional to the applied contact pressure and according to the distribution generated by the stressed areas), 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 microcapsule layers characterized by different and optimizable rupture points during production, essentially providing a range of measurement fields while ensuring high repeatability and predictability of the rupture point.
If you have any doubts, further useful information can be obtained by consulting the FAQ Prescale
Fuji Prescale Film LW: 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 LW: Usage Instructions
It is advisable to prepare the Prescale LW films well in advance of the test to allow the films (Film-A and Film-C) to acclimate to the ambient temperature and humidity conditions where they will be used. Unroll a sufficient length of film for the test on a clean, dry surface, preferably in a dimly lit area. This preparation allows the films to lay flat, making subsequent cutting and positioning operations easier, as detailed in the steps below. During these operations, and any that follow, ensure the shiny sides of the films are the only ones touching work surfaces. The matte sides are responsible for recording color density and distribution, and accidental contact could prematurely mark 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 LW: 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 LW: Main Applications
La pellicola Prescale con campo LW è stata vantaggiosamente adoperata nell'ambito di situazioni applicative quali le seguenti:
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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