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Christoph Bosshard

Kimoto

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Christoph Bosshard | Kimoto: What are the key differences in capabilities between Kimoto's wide coating line (Line 2) and compact coating line (LC3) in the US?

00:03:50 - 00:04:02

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What are the key differences in capabilities between Kimoto's wide coating line (Line 2) and compact coating line (LC3) in the US?

Kimoto operates two coating lines in the USA: a wide coating line (Line 2) and a compact coating line (LC3). The wide line, with a width of 1,500 millimeters, is equipped with three coating heads, enabling the application of up to five layers in a single pass, although typically three layers are applied in practice due to speed considerations. This line is suited for complex structures and high-volume production.

In contrast, the LC3 compact coating line has a width of 800 millimeters and features only one coating head. This limits it to applying a single layer in one pass, although a lamination layer can be added on top. The LC3 line is particularly well-suited for development projects due to its shorter length, which reduces material consumption and allows for more efficient experimentation.

The choice between the two lines depends on the specific requirements of the project. The wide line is ideal for high-volume production of multi-layered coatings, while the compact line is better suited for development work and single-layer applications. This dual-line approach provides Kimoto with the flexibility to meet a wide range of customer needs.

In this short video, you can learn:

* The maximum number of layers achievable in a single pass on each coating line.
* The primary applications for each coating line (production vs. development).
* The width specifications for both the wide and compact coating lines.

📋 **Clip Abstract** This segment compares Kimoto's two US-based coating lines, highlighting the wide line's multi-layer capability and the compact line's suitability for development projects. It details the differences in coating heads, line width, and typical applications.
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#MultiLayerCoating, #WebCoating, #CoatingLineConfiguration, #ProcessDevelopment, #OpticalFilms, #FlexibleElectronics

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03:55 - 05:43

Can post-consumer plastic bottles match the extreme optical and mechanical tolerances of modern printed electronics substrates?

Can post-consumer plastic bottles match the extreme optical and mechanical tolerances of modern printed electronics substrates?

Industrial transition from virgin polyester to 100% post-consumer recycled PET (PCR-PET) requires balancing high optical clarity with substantial sustainability gains. Processing recycled polyester involves a hybrid approach, combining 70% mechanically re-grinded material with 30% chemically recycled polymers to maintain the structural integrity needed for advanced display protection and light diffusion applications.

While this formulation yields up to a 32% reduction in the substrate's CO2 footprint and meets Global Recycled Standards, it introduces significant manufacturing bottlenecks. Currently, the supply chain faces challenges regarding limited thickness ranges and minimum order quantities, making it viable only for highly specialized, high-volume production lines rather than broad prototyping.

Moreover, the commercial reality of this green transition presents a steep hurdle for product designers. For equivalent quality and thickness, post-consumer recycled PET substrates command twice the market price of standard virgin polyester, forcing manufacturers to carefully weigh environmental credentials against strict unit economics.

In this short video, you can learn:
* How 100% post-consumer recycled PET is formulated using a 70/30 mechanical-chemical hybrid recycling process.
* The trade-offs of using PCR-PET, including a 32% CO2 footprint reduction versus restricted thickness options.
* Why high-end display protection films currently command twice the market price of virgin polyester substrates.

📋 **Clip Abstract** This clip explores the technical and economic viability of using 100% post-consumer recycled polyester as a base substrate for display and light diffusion films. It highlights how a hybrid mechanical-chemical recycling process achieves significant CO2 savings but currently suffers from limited availability and double the market price of virgin alternatives.

#PCRPETSubstrates, #MechanicalChemicalRecycling, #DisplayProtectionFilms, #FlexibleSubstrates, #PrintedElectronics, #SustainableElectronics

06:58 - 08:30

Can sand replace chemical primers and PFAS coatings to maximize the recyclability of printed electronics?

Can sand replace chemical primers and PFAS coatings to maximize the recyclability of printed electronics?

Traditional printed electronics rely heavily on wet-chemical primers, specialized hard coats, and potentially hazardous PFAS-containing surfactants to modify substrate surface energy and ensure ink adhesion. However, these multi-material laminates complicate end-of-life recycling, turning valuable polyester backings into unrecyclable composite waste.

An elegant alternative lies in mechanical, chemical-free processing, where controlled sandblasting is used to physically micro-roughen the surface of polyester (PET) or polyethylene naphthalate (PEN) films. This mechanical texturing increases the effective surface area, providing excellent physical anchoring sites for conductive inks, adhesives, and gaskets without adding any foreign chemical layers.

By avoiding chemical primers, the substrate remains a 100% monomaterial system, ensuring complete compatibility with standard mechanical and chemical recycling streams at the product's end-of-life. This sandblasted "Sand-Plus" technology is particularly valuable for high-heat gaskets and transfer films where chemical outgassing or degradation is unacceptable.

In this short video, you can learn:
* How mechanical sandblasting replaces wet-chemical primers to promote adhesion of conductive inks and adhesives.
* The preservation of 100% monomaterial polyester or PEN structures to enable seamless end-of-life recycling.
* The application of micro-roughened substrates in high-temperature environments like gaskets and transfer laminates.

📋 **Clip Abstract** This clip introduces a chemical-free mechanical surface modification technique using sand to micro-roughen polyester and PEN films. It discusses how physical texturing replaces chemical primers to enhance ink adhesion while maintaining a 100% monomaterial structure for optimal circular recycling.

#MechanicalSurfaceModification, #MonomaterialSubstrates, #PFASFreeAdhesion, #MicroRoughenedPET, #PrintedElectronics, #CircularElectronics

05:43 - 06:56

Why does wearing polarized sunglasses require a fundamentally different polymer chemistry for automotive displays?

Why does wearing polarized sunglasses require a fundamentally different polymer chemistry for automotive displays?

Liquid crystal and organic LED automotive displays present a unique optical challenge known as polarization blackout, where a driver wearing polarized sunglasses cannot see the screen. To resolve this, display engineers must employ low-birefringence, non-polar protective films as the outermost cover layers to prevent light distortion and maintain visibility under high ambient lighting.

Triacetyl cellulose (TAC) acts as a highly effective non-polar base material for these demanding applications. Unlike standard synthetic polymers, TAC can be sourced directly from sustainable biomass, utilizing wood pulp and cotton linters to synthesize triacetate structures that provide exceptional optical clarity and minimal optical anisotropy.

These biomass-sourced films are certified by organizations like the Japan Organics Recycling Association, with bio-content grades scaling from 10% to 40% depending on the inclusion of adhesives. This provides automotive Tier-1 suppliers with a viable pathway to reduce scope 3 emissions without sacrificing the strict safety and optical performance parameters of modern cockpits.

In this short video, you can learn:
* Why low-birefringence, non-polar TAC films are critical for preventing polarization blackout in automotive displays.
* The role of biomass-sourced triacetyl cellulose in replacing fossil-fuel-derived polymers for optical applications.
* How the volume ratio of adhesives to base substrates determines the certified bio-content rating of protective films.

📋 **Clip Abstract** This clip details the integration of biomass-sourced Triacetyl Cellulose (TAC) films as low-birefringence substrates for automotive displays to ensure visibility when wearing polarized sunglasses. It explains the technical selection of non-polar polymers and how biomass content certifications range from 10% to 40% based on the final film architecture.

#TriacetylCellulose, #LowBirefringence, #PolarizationBlackout, #BioBasedPolymers, #AutomotiveDisplays, #DisplayMaterials

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