You are here: products ·prescale film LLLWDescription: Fuji Prescale pressure-sensitive film, suitable for surface contact pressure distribution measurements (range LLLW: 0.2 to 0.6 MPa; 2 to 6 kgf/cm²; 29 to 87 psi).
Prescale pressure-sensitive film for surface contact pressure distribution measurements, range LLLW: 0.2 to 0.6 MPa (2 to 6 kgf/cm²; 29 to 87 psi)
Fuji Prescale Film LLLW: Overview
Even though Prescale film was developed by Fuji Film in the late 1970s, countless additional applications have been successfully addressed using Prescale Film (see relevant sections).
Even today, many years after its introduction, new applications are continually being added to those already known.
To better meet the wide range of possible applications for Prescale, Fuji Film has developed this product family, diversifying it across various measurement
ranges (a range that has been further expanded in recent years). This allows for a product family capable of covering virtually any application. Specifically,
the Prescale LLLW film can be used for all applications where contact pressures range between 0.2 MPa and 0.6 MPa (2 to 6 kgf/cm²; 29 to 87 psi).
In manufacturing and production environments, numerous situations require the verification of the correct pressure applied. Additionally, the ability to
control this critical parameter extends the operational life of machines and their parts, enhances production quality levels, and, in some cases, even increases
personnel safety. The consistency and stability of the applied pressure, in conjunction with the various production processes, improve the final production
quality by indirectly enabling control and enhancement of the process's repeatability.
The Prescale product range is, in fact, a study, analysis, and verification methodology that can be advantageously used for surface contact phenomena without
requiring specific skills or technical knowledge.
The use of Prescale pressure-sensitive film is very simple, fast, intuitive, and does not require specific preparation. From its first use, the image impressed
with various levels of magenta red will offer a clear visualization of the pressure distribution, which can be interpreted by direct comparison with the reference
color chart provided or through more accurate and repeatable electronic measurement tools. 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 environments have indeed standardized numerous internal quality checks based on the use of Prescale film.
Fuji Prescale Film LLLW: Key Features
immediate "mapping" of surface pressure distribution;
allows measurements between 0.2 to 0.6 MPa (2 to 6 kgf/cm²; 29 to 87 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 LLLW: Technology Overview
Depending on their measurement range, Prescale films are available in two formats: single-sheet and double-sheet. For lower measurement ranges, Fuji Film requires
the use of two different sheets (A and C), while for higher measurement ranges, the Prescale film is a single sheet.
The Prescale film with LLLW range is available only in the double-sheet version (two sheets type). The double-sheet type consists of a first sheet called Film-A,
on which a highly homogeneous layer of microcapsules (proprietary technology PSC - Particle Size Control) containing a coloring substance is deposited, and a
second sheet called Film-C, on which the fixing agent for the coloring substance has been distributed.
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 LLLW: Technical Specifications
denomination: ultra super low pressure;
product code: LLLW;
type: double-sheet film;
roll dimension: 270 mm x 5 meters (length);
measurement range: 0.2 to 0.6 MPa (2 to 6 kgf/cm²; 29 to 87 psi);
accuracy (*) (**) : typically ±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 LLLW: Usage Instructions
It is advisable to prepare the Prescale LLLW films well in advance of the test, allowing the films (Film-A and Film-C) to acclimate to the environmental
conditions of temperature and humidity in which they will be used. Unroll an adequate amount of film for the test to be conducted, ensuring that they lie
on a clean, dry, preferably low-light surface. These preparatory steps will allow the films to flatten out, simplifying the subsequent cutting and placement
operations described in the sequence below. During these operations (and those that follow), place only the glossy sides of the films on the work surfaces
(as the matte sides, when combined, will determine the density and distribution of the recorded color), to avoid any accidental contact that might impress
the films before the tests.
Proceed to cut the Prescale LLLW films to the desired dimensions using a simple pair of scissors. Since it consists of two films (Film-A and Film-C), make sure
to cut both films that make up the Prescale Film, ensuring that the defined dimensions are suitable for the area to be tested.
For the reasons previously mentioned, handle the Prescale LLLW with the utmost care and delicacy. Then, overlay the two films, ensuring
that the cut shape matches for both films. The films should be facing each other with their matte surfaces (with the glossy sides on the outside);
keep this in mind during the cutting process.
After placing the two films with their matte sides facing each other, position the resulting double layer in the area to be tested. Then, apply
the contact phenomenon to be studied to impress the Prescale. For details on how to reproduce the phenomenon and the timing, refer to the provided
instruction sheet.
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 recorded, indicating (according to the developed color density) the magnitude of the applied pressure.
This can be assessed visually by comparing it with the provided colorimetric table.
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:
The Prescale film with the LLLW range has been advantageously used in the following application situations:
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 LLLW Description: Fuji Prescale pressure-sensitive film, suitable for surface contact pressure distribution measurements (range LLLW: 0.2 to 0.6 MPa; 2 to 6 kgf/cm²; 29 to 87 psi).
Prescale Film LLLW
Ultra Super Low Pressure
Prescale pressure-sensitive film for surface contact pressure distribution measurements, range LLLW: 0.2 to 0.6 MPa
(2 to 6 kgf/cm²; 29 to 87 psi)
Fuji Prescale Film LLLW: Overview
Even though Prescale film was developed by Fuji Film in the late 1970s, countless additional applications have been successfully addressed using Prescale Film (see relevant sections). Even today, many years after its introduction, new applications are continually being added to those already known.
To better meet the wide range of possible applications for Prescale, Fuji Film has developed this product family, diversifying it across various measurement
ranges (a range that has been further expanded in recent years). This allows for a product family capable of covering virtually any application. Specifically,
the Prescale LLLW film can be used for all applications where contact pressures range between 0.2 MPa and 0.6 MPa (2 to 6 kgf/cm²; 29 to 87 psi).
In manufacturing and production environments, numerous situations require the verification of the correct pressure applied. Additionally, the ability to
control this critical parameter extends the operational life of machines and their parts, enhances production quality levels, and, in some cases, even increases
personnel safety. The consistency and stability of the applied pressure, in conjunction with the various production processes, improve the final production
quality by indirectly enabling control and enhancement of the process's repeatability.
The Prescale product range is, in fact, a study, analysis, and verification methodology that can be advantageously used for surface contact phenomena without
requiring specific skills or technical knowledge.
The use of Prescale pressure-sensitive film is very simple, fast, intuitive, and does not require specific preparation. From its first use, the image impressed
with various levels of magenta red will offer a clear visualization of the pressure distribution, which can be interpreted by direct comparison with the reference
color chart provided or through more accurate and repeatable electronic measurement tools. 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 environments have indeed standardized numerous internal quality checks based on the use of Prescale film.
Fuji Prescale Film LLLW: Key Features
Fuji Prescale Film LLLW: Technology Overview
Depending on their measurement range, Prescale films are available in two formats: single-sheet and double-sheet. For lower measurement ranges, Fuji Film requires the use of two different sheets (A and C), while for higher measurement ranges, the Prescale film is a single sheet. The Prescale film with LLLW range is available only in the double-sheet version (two sheets type). The double-sheet type consists of a first sheet called Film-A, on which a highly homogeneous layer of microcapsules (proprietary technology PSC - Particle Size Control) containing a coloring substance is deposited, and a second sheet called Film-C, on which the fixing agent for the coloring substance has been distributed.
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 LLLW: 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 LLLW: Usage Instructions
It is advisable to prepare the Prescale LLLW films well in advance of the test, allowing the films (Film-A and Film-C) to acclimate to the environmental conditions of temperature and humidity in which they will be used. Unroll an adequate amount of film for the test to be conducted, ensuring that they lie on a clean, dry, preferably low-light surface. These preparatory steps will allow the films to flatten out, simplifying the subsequent cutting and placement operations described in the sequence below. During these operations (and those that follow), place only the glossy sides of the films on the work surfaces (as the matte sides, when combined, will determine the density and distribution of the recorded color), to avoid any accidental contact that might impress the films before the tests.
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 LLLW: 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 LLLW: Main Applications
The Prescale film with the LLLW range 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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