{"id":94,"date":"2025-09-04T15:28:02","date_gmt":"2025-09-04T06:28:02","guid":{"rendered":"https:\/\/clarex.co.jp\/njk_wp\/en\/?page_id=94"},"modified":"2026-11-12T16:56:06","modified_gmt":"2026-11-12T07:56:06","slug":"technology","status":"publish","type":"page","link":"https:\/\/clarex.co.jp\/en\/technology\/","title":{"rendered":"TECHNOLOGY"},"content":{"rendered":"\n
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We propose a variety of customized products. <\/span><\/strong><\/h2>\n\n\n\n

“Cell-Cast sheeting method” and “CLAREX Technology Platform” make it possible to propose variety of optically valued products.<\/p>\n<\/div><\/div><\/div>\n\n\n\n

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CLAREX Cell-Cast Sheeting Method<\/h2>\n\n\n\n

Introducing the Cell-Cast Sheeting Method and its features.
Advantages and disadvantages comparing to other sheeting method like Extrusion method can also be found.<\/p>\n<\/div><\/div><\/div>\n\n\n\n

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Features of Optical Grade Cell-Cast Acrylic Sheet<\/h3>\n\n\n\n
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<\/path><\/svg><\/figure>
High Molecular
Weight<\/div>
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\u2003<\/span>2,000,000<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n

<\/path><\/svg><\/figure>
High
Transmission<\/div>
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92\uff5e94\uff05
Haze :  \u2264 0.1%<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n

<\/path><\/svg><\/figure>
Excellent
Surface
Smoothness<\/div>
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\u2003<\/span>0.02\u03bcm<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n

<\/path><\/svg><\/figure>
Thickness<\/div>
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0.2mm\uff5e90mm<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n

<\/path><\/svg><\/figure>
Color
Customization<\/div>
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<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n

<\/path><\/svg><\/figure>
Surface
Hardness<\/div>
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Normal Grade\uff1a2H
Hard-Coat Grade\uff1a\u2003<\/span>6H<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n

<\/path><\/svg><\/figure>
Excellent
Light
Resistancy<\/div>
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<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n

<\/path><\/svg><\/figure>
Isotropic
Transmission<\/div>
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No Birefringence<\/p>\n<\/div><\/div><\/div><\/div>\n<\/div>\n\n\n<\/div><\/div><\/div>\n\n\n\n

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Production Method of PMMA Sheet (Cell-Casting)<\/h3>\n\n\n\n
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STEP<\/span><\/div>
Mixing the Monomer and Catalyst Process<\/span><\/strong><\/div><\/div>
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The raw material called MMA (Methyl methacrylate) Monomer and the initiator liquid are poured into a pre-polymerization unit.<\/p>\n<\/div>\n\n\n\n

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\"\"<\/figure>\n<\/div><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n
STEP<\/span><\/div>
Casting Process<\/strong><\/span><\/strong> <\/div><\/div>
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This pre-polymerized liquid is poured into a cell-mold.<\/p>\n<\/div>\n\n\n\n

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\"\"<\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n
STEP<\/span><\/div>
Polymerization Process<\/span><\/strong><\/div><\/div>
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It is polymerized by a heat treatment.
At this heating stage, the liquid becomes a solid acrylic sheet, and this means that the MMA becomes PMMA.<\/p>\n<\/div>\n\n\n\n

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\"\"<\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n
STEP<\/span><\/div>
Mold Release Process<\/span><\/div><\/div>
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A solid acrylic sheet is separated from the glass mold.<\/p>\n<\/div>\n\n\n\n

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\"\"<\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n
STEP<\/span><\/div>
Inspection Process<\/span><\/div><\/div>
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Each sheet is individually inspected foreign matter, surface quality and thickness.<\/p>\n<\/div>\n\n\n\n

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Visual Inspection<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n
STEP<\/span><\/div>
Protection film lamination<\/span><\/div><\/div>
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Protective film is applied to both sides to protect surface quality.<\/p>\n<\/div>\n\n\n\n

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\"\"<\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n
STEP<\/span><\/div>
Cutting Process<\/span><\/div><\/div>
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The sheet is cut into standard size.<\/p>\n<\/div>\n\n\n\n

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\"\"<\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div><\/div><\/div>\n\n\n\n\n\n
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General Comparison of Sheeting Method (Extrusion vs. Cell-Casting Method)<\/h2>\n\n\n\n

Here explains what is Cell-Casting method and its features, and advantages comparing to Extrusion method.<\/p>\n\n\n\n

Cell-Casting Method<\/th>Cast “Liquid MMA” directly into Cell-Mold. (Batch Process)
\u2003<\/span>Suitable for High-Mix\/Low-Volume Production.<\/td><\/tr>
Extrusion Method<\/th>Put “PMMA Pellet” into the extruder and make it flat sheet. (Continuous Process)
\u2003<\/span>Suitable for Low-Mix\/High-Volume Production.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
<\/th>Cell-Casting Method<\/th>Extrusion Method<\/th><\/tr><\/thead>
Advantage<\/td>No double refraction (No birefringence). Suitable for optical sensor cover filter.

High-Mix\/Low-Volume. Color match and other customization.

Higher molecular weight.  Better chemical resistance.<\/td>		Shorter production lead-time and lower production cost because of continuous process.

Easier to control thickness tolerance.

Easy to make large size sheet.<\/td><\/tr>
Disadvantage<\/td>Longer production lead-time and higher production cost because of batch process.

More difficult to control thickness tolerance.<\/td>		Double refraction (birefringence) in general.

Not flexible in terms of customization. Low-Mix\/High-Volume.<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div><\/div>\n\n\n\n
<\/div>
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CLAREX Technology Platform<\/h2>\n\n\n\n

We customize or develop many customer requested products by combining our original Technology Platform described below.<\/p>\n\n\n\n

5 basic technologies<\/h3>\n\n\n\n
\"\"<\/figure>\n\n\n\n
<\/div>
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Design (Optical\/Polymer)<\/span><\/h2><\/span>
<\/div><\/div>\n\n\n\n

Design Technique<\/h4>\n\n\n\n
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  • Optical Design\n
      \n
    • Spectrum Control\uff1aUV \/ NIR \/ Laser Scanner Filter etc.<\/li>\n\n\n\n
    • Light Distribution\uff1aHSOT LightGuide \/ Projection Screen etc.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
    • Polymer Design\n
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      • Heat Resistant PMMA \/ Low moisture absorption PMMA etc.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n
        \n
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        Thickness<\/h2><\/span>
        <\/div><\/div>\n\n\n\n

        Thickness Control (0.2mm\uff5e90mm)<\/h4>\n\n\n\n
          \n
        • CLAREX Precision Sheet : 0.2mm\uff5e5.0mm<\/li>\n\n\n\n
        • CLAREX General Purpose Acrylic Sheet : 2.0mm\uff5e90mm<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
          \n
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          Surface Texture<\/h2><\/span>
          <\/div><\/div>\n\n\n\n

          Highly Smooth & Flat Surface<\/h4>\n\n\n\n
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          • Glass-like Ultra-Smooth Surface.<\/li>\n<\/ul>\n\n\n\n

            Many Non-Glare & Matt surface textures to choose from<\/h4>\n\n\n\n
              \n
            • One-Side Non-Glare (Matt)<\/li>\n\n\n\n
            • Both-Sides Non-Glare (Matt)<\/li>\n\n\n\n
            • You can choose different Non-Glare texture on one sheet.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n
              \n
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              Coating<\/h2><\/span>
              <\/div><\/div>\n\n\n\n

              Variety of single & multi-layer optical coating<\/h4>\n\n\n\n
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              • Hard Coating \/ Scratch Resistant Coating (6H or over)<\/li>\n\n\n\n
              • Anti-Reflection (AR) Coating \/ Mirror Coating<\/li>\n\n\n\n
              • Anti-Bacteria (AB) Coating<\/li>\n\n\n\n
              • Anti-Fingerprint Coating \/ Anti-Smudge Coating<\/li>\n\n\n\n
              • IR-Cut Coating<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
                \n
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                \n

                Processing<\/h2><\/span>
                <\/div><\/div>\n\n\n\n

                From Material Production to Machine Processing<\/h4>\n\n\n\n
                  \n
                • Cutting & NC routing (CNC\/V ditch)<\/li>\n\n\n\n
                • Printing (Silk Screen \/ etc.)<\/li>\n\n\n\n
                • Mold Processing (Heat Bending \/ Blow \/ Press \/ etc.)<\/li>\n\n\n\n
                • Lamination (UV \/ Heat \/ etc.)<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n
                  <\/div>\n<\/div>\n<\/div><\/div><\/div>\n<\/div><\/div><\/polygon><\/svg><\/polygon><\/svg><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":1224,"parent":0,"menu_order":41,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-94","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/clarex.co.jp\/en\/wp-json\/wp\/v2\/pages\/94","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/clarex.co.jp\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/clarex.co.jp\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/clarex.co.jp\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/clarex.co.jp\/en\/wp-json\/wp\/v2\/comments?post=94"}],"version-history":[{"count":50,"href":"https:\/\/clarex.co.jp\/en\/wp-json\/wp\/v2\/pages\/94\/revisions"}],"predecessor-version":[{"id":1907,"href":"https:\/\/clarex.co.jp\/en\/wp-json\/wp\/v2\/pages\/94\/revisions\/1907"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/clarex.co.jp\/en\/wp-json\/wp\/v2\/media\/1224"}],"wp:attachment":[{"href":"https:\/\/clarex.co.jp\/en\/wp-json\/wp\/v2\/media?parent=94"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}