{"id":2860,"date":"2026-08-07T10:41:59","date_gmt":"2026-08-07T02:41:59","guid":{"rendered":"http:\/\/0"},"modified":"2026-08-04T17:52:24","modified_gmt":"2026-08-04T09:52:24","slug":"why-co-injection-molding-lowers-material-packaging-costs","status":"publish","type":"post","link":"https:\/\/www.jcinjectionmolding.com\/ja\/blog\/why-co-injection-molding-lowers-material-packaging-costs\/","title":{"rendered":"\u30b3\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u6210\u5f62\u304c\u6750\u6599\u5305\u88c5\u30b3\u30b9\u30c8\u3092\u524a\u6e1b\u3059\u308b\u7406\u7531"},"content":{"rendered":"<article style=\"font-family: -apple-system, BlinkMacSystemFont, &#039;Segoe UI&#039;, Roboto, Helvetica, Arial, sans-serif;color: #333333;width: 100%\">\n<section style=\"margin-bottom: 30px\">\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Manufacturing cost-effective structural enclosures and multi-functional plastic hardware requires balancing pristine surface aesthetics with low raw material expenses. Solid single-material components using virgin engineering resins drive up production costs, whereas using 100% recycled polymers compromises surface cosmetics and impact strength. Specifying professional <a href=\"https:\/\/www.jcinjectionmolding.com\/ja\/service\/custom-mold-making\/\"><strong>co injection molding<\/strong><\/a> resolves these conflicting requirements by encapsulating a low-cost or recycled polymer core inside a high-purity virgin outer skin. JUCHENG operates specialized multi-barrel co-injection machinery, delivering multi-layer structural parts strictly according to customer technical CAD drawings.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2863\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-molding-machine-barrels.webp\" alt=\"co-injection-molding-machine-barrels\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-molding-machine-barrels.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-molding-machine-barrels-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-molding-machine-barrels-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-molding-machine-barrels-768x429.webp 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<\/section>\n<p><!-- Table of Contents --><\/p>\n<section style=\"background-color: #f8f9fa;border-left: 4px solid #0056b3;padding: 24px;border-radius: 6px;margin: 40px 0\">\n<h3 style=\"font-size: 22px;font-weight: bold;line-height: 1.5em;margin-top: 0;margin-bottom: 16px;color: #111111\">\u76ee\u6b21<\/h3>\n<ul style=\"list-style-type: none;padding-left: 0;margin: 0\">\n<li style=\"margin-bottom: 12px\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#sandwich-molding\">1. Sandwich Molding: Virgin Outer Skin with Recycled\/Regrind Core<\/a><\/li>\n<li style=\"margin-bottom: 12px\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#viscosity-matching\">2. Material Interlayer Adhesion &amp; Viscosity Matching in Dual Injections<\/a><\/li>\n<li style=\"margin-bottom: 0\"><a style=\"color: #0056b3;text-decoration: none;font-size: 17px;font-weight: 500\" href=\"#emi-shielded\">3. Cost-Effective Structural Panels &amp; EMI Shielded Enclosures<\/a><\/li>\n<\/ul>\n<\/section>\n<p><!-- Section 1 --><\/p>\n<section id=\"sandwich-molding\" style=\"margin-bottom: 50px\">\n<h2 style=\"font-size: 28px;line-height: 1.5em;font-weight: bold;margin-top: 40px;margin-bottom: 24px;color: #111111;border-bottom: 1px solid #eaeaea;padding-bottom: 8px\">Sandwich Molding: Virgin Outer Skin with Recycled\/Regrind Core<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2865\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-concentric-injection-nozzle.webp\" alt=\"dual-concentric-injection-nozzle\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-concentric-injection-nozzle.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-concentric-injection-nozzle-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-concentric-injection-nozzle-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/dual-concentric-injection-nozzle-768x429.webp 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Executing multi-layer processing utilizes <strong>sandwich molding<\/strong> technology through specialized dual-concentric nozzles or sequential manifold valves. First-stage injection introduces the virgin skin resin, filling the cavity walls to form a pristine outer surface. Second-stage injection introduces the core material directly into the warm center of the skin melt, expanding the core from within. Enclosing a <strong>regrind core<\/strong> or recycled polymer inside a virgin skin cuts raw material costs by up to 30% to 50% without altering surface finish. Final skin-purge injection seals the sprue gate with virgin resin, ensuring zero recycled material remains exposed on external surfaces.<\/p>\n<p><!-- Numbered List --><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 16px\">Co-injection sandwich sequence steps include:<\/p>\n<ol style=\"font-size: 18px;line-height: 1.8em;margin-bottom: 24px;padding-left: 24px;list-style-type: decimal\">\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>Virgin skin injection<\/strong>\u2014\u9ad8\u7d14\u5ea6\u30b9\u30ad\u30f3\u6a39\u8102\u3092\u5c04\u51fa\u3059\u308b\u3053\u3068\u3067\u3001\u51b7\u305f\u3044\u91d1\u578b\u58c1\u9762\u306b\u5bfe\u3057\u3066\u6b20\u9665\u306e\u306a\u3044\u8868\u9762\u5c64\u3092\u5f62\u6210\u3057\u307e\u3059\u3002.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>\u30b3\u30a2\u30e1\u30eb\u30c8\u7f6e\u63db<\/strong>\u2014\u30bb\u30f3\u30bf\u30fc\u30de\u30cb\u30db\u30fc\u30eb\u30c9\u304b\u3089\u30b3\u30a2\u6a39\u8102\u3092\u5c04\u51fa\u3059\u308b\u3053\u3068\u3067\u3001\u30b5\u30f3\u30c9\u30a4\u30c3\u30c1\u5c64\u3092\u5747\u4e00\u306b\u62e1\u5f35\u3057\u307e\u3059\u3002.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>\u30b2\u30fc\u30c8\u30b9\u30ad\u30f3\u30d1\u30fc\u30b8<\/strong>\u2014\u30d0\u30fc\u30b8\u30f3\u30b9\u30ad\u30f3\u6a39\u8102\u306e\u77ed\u3044\u6700\u7d42\u30b7\u30e7\u30c3\u30c8\u3092\u5c04\u51fa\u3057\u3066\u30b2\u30fc\u30c8\u3092\u5c01\u6b62\u3057\u3001\u30b3\u30a2\u306e\u9732\u51fa\u3092\u9632\u304e\u307e\u3059\u3002.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>\u30ad\u30e3\u30d3\u30c6\u30a3\u5727\u529b\u30d1\u30c3\u30ad\u30f3\u30b0<\/strong>\u2014\u30d1\u30c3\u30ad\u30f3\u30b0\u5727\u529b\u3092\u4fdd\u6301\u3059\u308b\u3053\u3068\u3067\u3001\u5747\u4e00\u306a\u5bc6\u5ea6\u3092\u78ba\u4fdd\u3057\u3001\u30d2\u30b1\u306e\u5f62\u6210\u3092\u9632\u304e\u307e\u3059\u3002.<\/li>\n<\/ol>\n<\/section>\n<p><!-- Section 2 --><\/p>\n<section id=\"viscosity-matching\" style=\"margin-bottom: 50px\">\n<h2 style=\"font-size: 28px;line-height: 1.5em;font-weight: bold;margin-top: 40px;margin-bottom: 24px;color: #111111;border-bottom: 1px solid #eaeaea;padding-bottom: 8px\">\u4e8c\u91cd\u5c04\u51fa\u306b\u304a\u3051\u308b\u6750\u6599\u5c64\u9593\u63a5\u7740\u3068\u7c98\u5ea6\u30de\u30c3\u30c1\u30f3\u30b0<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2864\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-polymer-boundary-layer.webp\" alt=\"co-injection-polymer-boundary-layer\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-polymer-boundary-layer.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-polymer-boundary-layer-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-polymer-boundary-layer-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/co-injection-polymer-boundary-layer-768x429.webp 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">\u5b89\u5b9a\u3057\u305f\u30b5\u30f3\u30c9\u30a4\u30c3\u30c1\u5c64\u3092\u5b9f\u73fe\u3059\u308b\u306b\u306f\u3001\u30b9\u30ad\u30f3\u3068\u30b3\u30a2\u306e\u30e1\u30eb\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0\u9593\u306e\u6b63\u78ba\u306a <strong>\u7c98\u5ea6\u30de\u30c3\u30c1\u30f3\u30b0<\/strong> \u304c\u5fc5\u8981\u3067\u3059\u3002\u30e1\u30eb\u30c8\u7c98\u5ea6\u5dee\u304c20%\u3092\u8d85\u3048\u308b\u3068\u3001\u30b3\u30a2\u6750\u6599\u304c\u30b9\u30ad\u30f3\u3092\u7a81\u7834\u3057\u3001 <strong>\u30b9\u30ad\u30f3\u30d6\u30ec\u30fc\u30af\u30b9\u30eb\u30fc<\/strong>. \u304c\u767a\u751f\u3057\u307e\u3059\u3002\u30b9\u30ad\u30f3\u30d6\u30ec\u30fc\u30af\u30b9\u30eb\u30fc\u306f\u3001\u90e8\u54c1\u8868\u9762\u306b\u5185\u90e8\u30b3\u30a2\u6750\u6599\u3092\u9732\u51fa\u3055\u305b\u3001\u5916\u89b3\u4e0d\u826f\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002 <strong>PC\/ABS<\/strong> \u307e\u305f\u306f <a href=\"https:\/\/www.jcinjectionmolding.com\/ja\/materials\/polypropylene-pp\/\"><strong>\u30dd\u30ea\u30d7\u30ed\u30d4\u30ec\u30f3\uff08PP\uff09<\/strong><\/a> \u306e\u3088\u3046\u306a\u4e92\u63db\u6027\u306e\u3042\u308b\u71b1\u53ef\u5851\u6027\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3001\u5c64\u9593\u5883\u754c\u306b\u6cbf\u3063\u305f\u5f37\u529b\u306a\u5316\u5b66\u878d\u5408\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002\u9069\u5207\u306a\u6e29\u5ea6\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u306b\u3088\u308a\u3001\u540c\u69d8\u306e\u30ec\u30aa\u30ed\u30b8\u30fc\u6d41\u52d5\u30d5\u30ed\u30f3\u30c8\u304c\u7dad\u6301\u3055\u308c\u3001\u30b3\u30a2\u304c\u5916\u5074\u30b9\u30ad\u30f3\u5185\u3067\u540c\u5fc3\u5186\u72b6\u306b\u4fdd\u305f\u308c\u307e\u3059\u3002.<\/p>\n<p><!-- Table 1: Co-Injection Material Pairs Table --><\/p>\n<div style=\"margin: 32px 0\">\n<table style=\"width: 100%;border-collapse: collapse;font-size: 16px;text-align: left;min-width: 600px\">\n<thead>\n<tr style=\"background-color: #f8f9fa;border-bottom: 2px solid #dee2e6\">\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">\u5916\u5074\u30b9\u30ad\u30f3\u6750\u6599<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">\u5c01\u5165\u30b3\u30a2\u6750\u6599<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">\u7c98\u5ea6\u6bd4\u76ee\u6a19<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">\u30b3\u30a2\u4f53\u7a4d\u5272\u5408 (%)<\/th>\n<th style=\"padding: 16px;border: 1px solid #dee2e6;font-weight: 600;color: #111111\">\u4e3b\u306a\u6a5f\u80fd\u7684\u5229\u70b9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom: 1px solid #dee2e6\">\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">\u30d0\u30fc\u30b8\u30f3PC\/ABS (\u30d9\u30a4\u30d6\u30ec\u30f3\u30c9)<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">\u30ea\u30b5\u30a4\u30af\u30ebPC\/ABS + \u30ab\u30fc\u30dc\u30f3\u30d5\u30a1\u30a4\u30d0\u30fc<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">1.0 : 1.1<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">35% \u2013 45%<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">\u5185\u8535EMI\/RFI\u30b7\u30fc\u30eb\u30c9 &amp; \u6a39\u8102\u30b3\u30b9\u30c8\u4f4e\u6e1b<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #dee2e6\">\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">\u30d0\u30fc\u30b8\u30f3PP (SABIC PP 570P)<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">\u30dd\u30b9\u30c8\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\u30ea\u30b5\u30a4\u30af\u30ebPP<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">1.0 : 1.05<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">40% \u2013 50%<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">\u6301\u7d9a\u53ef\u80fd\u306a\u69cb\u9020\u30d1\u30cd\u30eb &amp; \u30d1\u30ec\u30c3\u30c8<\/td>\n<\/tr>\n<tr style=\"border-bottom: 1px solid #dee2e6\">\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">\u30d0\u30fc\u30b8\u30f3ABS (\u30dd\u30ea\u30e9\u30c3\u30af PA-757)<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">\u9ad8\u5145\u586b\u30ea\u30b0\u30e9\u30a4\u30f3\u30c9ABS<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">1.0 : 1.15<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">30% \u2013 40%<\/td>\n<td style=\"padding: 16px;border: 1px solid #dee2e6;color: #333333\">\u9ad8\u525b\u6027\u306e\u539a\u8089\u5bb6\u96fb\u30cf\u30a6\u30b8\u30f3\u30b0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n<p><!-- Section 3 --><\/p>\n<section id=\"emi-shielded\" style=\"margin-bottom: 50px\">\n<h2 style=\"font-size: 28px;line-height: 1.5em;font-weight: bold;margin-top: 40px;margin-bottom: 24px;color: #111111;border-bottom: 1px solid #eaeaea;padding-bottom: 8px\">Cost-Effective Structural Panels &amp; EMI Shielded Enclosures<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2866\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/emi-shielded-plastic-enclosure.webp\" alt=\"emi-shielded-plastic-enclosure\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/emi-shielded-plastic-enclosure.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/emi-shielded-plastic-enclosure-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/emi-shielded-plastic-enclosure-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/emi-shielded-plastic-enclosure-768x429.webp 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Co-injection processing enables unique functional material combinations impossible with single-shot molding. Electronic housings incorporate a <strong>carbon-filled conductive core<\/strong> inside a cosmetic PC\/ABS outer skin, providing built-in EMI\/RFI shielding without secondary conductive painting. Industrial transport pallets and structural panels encapsulate low-cost post-consumer recycled resin inside a weather-resistant virgin PP outer shell. Multi-layer encapsulation satisfies strict environmental sustainability criteria while lowering total part manufacturing expenses.<\/p>\n<p><!-- Bulleted List --><\/p>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 16px\">Key industry co-injection advantages include:<\/p>\n<ul style=\"list-style-type: disc;padding-left: 24px;font-size: 18px;line-height: 1.8em;margin-bottom: 24px\">\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>Raw material cost reduction<\/strong>\u2014Encapsulating up to 50% recycled or regrind core material reduces overall resin expenditure.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>Built-in conductive shielding<\/strong>\u2014Enclosing conductive carbon black cores delivers internal EMI attenuation without secondary painting.<\/li>\n<li style=\"margin-bottom: 12px;text-align: left\"><strong>Pristine surface appearance<\/strong>\u2014Hiding discolored or heavily filled core resins behind a virgin skin maintains A-class cosmetic standards.<\/li>\n<\/ul>\n<\/section>\n<p><!-- FAQ Section --><\/p>\n<section id=\"faq\" style=\"margin-bottom: 40px\">\n<h2 style=\"font-size: 28px;line-height: 1.5em;font-weight: bold;margin-top: 40px;margin-bottom: 24px;color: #111111;border-bottom: 1px solid #eaeaea;padding-bottom: 8px\">\u3088\u304f\u3042\u308b\u8cea\u554f (FAQ)<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2861\" src=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/measuring-sandwich-skin-thickness.webp\" alt=\"measuring-sandwich-skin-thickness\" width=\"1376\" height=\"768\" srcset=\"https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/measuring-sandwich-skin-thickness.webp 1376w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/measuring-sandwich-skin-thickness-300x167.webp 300w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/measuring-sandwich-skin-thickness-1024x572.webp 1024w, https:\/\/www.jcinjectionmolding.com\/wp-content\/uploads\/2026\/08\/measuring-sandwich-skin-thickness-768x429.webp 768w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/p>\n<div style=\"margin-bottom: 30px\">\n<h3 style=\"font-size: 22px;line-height: 1.5em;font-weight: bold;margin-top: 24px;margin-bottom: 12px;color: #111111\">What is the difference between co injection molding and two shot (2K) molding?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">Co injection molding injects two different material streams simultaneously or sequentially through a single gate to form a multi-layer sandwich structure (skin and core). Two shot molding injects two materials into distinct sections of a part using a rotating mold platen.<\/p>\n<\/div>\n<div style=\"margin-bottom: 30px\">\n<h3 style=\"font-size: 22px;line-height: 1.5em;font-weight: bold;margin-top: 24px;margin-bottom: 12px;color: #111111\">How much recycled material can be encapsulated inside a co-injection core?<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">\u30b3\u30a2\u6bd4\u7387\u306f\u3001\u5f62\u72b6\u3084\u58c1\u539a\u306b\u3082\u3088\u308a\u307e\u3059\u304c\u3001\u901a\u5e38\u3001\u7dcf\u90e8\u54c1\u91cd\u91cf\u306e30%\u304b\u308950%\u3092\u5360\u3081\u307e\u3059\u3002\u6700\u5c0f\u5916\u76ae\u539a\u3055\u30921.0mm\u304b\u30891.5mm\u306b\u4fdd\u3064\u3053\u3068\u3067\u3001\u30b3\u30a2\u306e\u7a81\u304d\u7834\u308a\u3092\u9632\u304e\u3001\u8868\u9762\u5f37\u5ea6\u3092\u7dad\u6301\u3057\u307e\u3059\u3002.<\/p>\n<\/div>\n<div style=\"margin-bottom: 0\">\n<h3 style=\"font-size: 22px;line-height: 1.5em;font-weight: bold;margin-top: 24px;margin-bottom: 12px;color: #111111\">\u30b5\u30f3\u30c9\u30a4\u30c3\u30c1\u6210\u5f62\u306b\u304a\u3051\u308b\u30b3\u30a2\u306e\u7a81\u304d\u7834\u308a\u3092\u3069\u306e\u3088\u3046\u306b\u9632\u304e\u307e\u3059\u304b\uff1f<\/h3>\n<p style=\"font-size: 18px;line-height: 1.8em;text-align: left;margin-bottom: 24px\">\u30b3\u30a2\u306e\u7a81\u304d\u7834\u308a\u3092\u9632\u3050\u306b\u306f\u3001\u30b9\u30ad\u30f3\u3068\u30b3\u30a2\u306e\u30dd\u30ea\u30de\u30fc\u306e\u6eb6\u878d\u7c98\u5ea6\u309215%\u306e\u7bc4\u56f2\u5185\u3067\u4e00\u81f4\u3055\u305b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u521d\u671f\u30b9\u30ad\u30f3\u5c04\u51fa\u91cf\u3068\u5c04\u51fa\u901f\u5ea6\u3092\u5236\u5fa1\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30a2\u6a39\u8102\u304c\u5165\u308b\u524d\u306b\u5747\u4e00\u306a\u5883\u754c\u5c64\u3092\u78ba\u4fdd\u3057\u307e\u3059\u3002.<\/p>\n<\/div>\n<\/section>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>Manufacturing cost-effective structural enclosures and multi-functional plastic hardware requires balancing pristine surface aesthetics with low raw material expenses. Solid single-material components using virgin engineering resins drive up production costs, whereas using 100% recycled polymers compromises surface cosmetics and impact strength. Specifying professional co injection molding resolves these conflicting requirements by encapsulating a low-cost or recycled polymer core inside a high-purity virgin outer skin. JUCHENG operates specialized multi-barrel co-injection machinery, delivering multi-layer structural parts strictly according to customer technical CAD drawings. Table of Contents 1. Sandwich Molding: Virgin Outer Skin with Recycled\/Regrind Core 2. Material Interlayer Adhesion &amp; Viscosity Matching in Dual Injections 3. Cost-Effective Structural Panels &amp; EMI Shielded Enclosures [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2862,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2860","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/ja\/wp-json\/wp\/v2\/posts\/2860","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/ja\/wp-json\/wp\/v2\/comments?post=2860"}],"version-history":[{"count":0,"href":"https:\/\/www.jcinjectionmolding.com\/ja\/wp-json\/wp\/v2\/posts\/2860\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/ja\/wp-json\/wp\/v2\/media\/2862"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/ja\/wp-json\/wp\/v2\/media?parent=2860"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/ja\/wp-json\/wp\/v2\/categories?post=2860"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/ja\/wp-json\/wp\/v2\/tags?post=2860"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}