{"id":2565,"date":"2026-06-17T16:50:27","date_gmt":"2026-06-17T08:50:27","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2565"},"modified":"2026-07-01T09:31:37","modified_gmt":"2026-07-01T01:31:37","slug":"pad-silk-printing","status":"publish","type":"process","link":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/service\/pad-silk-printing\/","title":{"rendered":"Pad & Silk Printing"},"content":{"rendered":"
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Pad Printing vs. Silk Screen Printing Technical Matrix<\/h2>\n

Applying high-definition text, logos, and graduation markings requires selecting the correct print process based on part geometry:<\/p>\n\n\n\n\n\n\n
Printing Process<\/th>\nTransfer Method & Tooling<\/th>\nTypical Alignment Tolerance<\/th>\nDimensional Suitability<\/th>\n<\/tr>\n<\/thead>\n
Pad Printing (\u79fb\u5370)<\/td>\nDeformable Silicone Pad & Etched Clich\u00e9 Plate<\/td>\n\u00b10.05 mm to \u00b10.1 mm<\/td>\nExcellent for 3D curved surfaces, spheres, recessed buttons, and cylindrical syringe barrels.<\/td>\n<\/tr>\n
Silk Screen Printing (\u4e1d\u5370)<\/td>\nPolyester Mesh Screen & Rubber Squeegee<\/td>\n\u00b10.1 mm to \u00b10.2 mm<\/td>\nHighly suitable for large flat panels, appliance covers, cylindrical bottles, and geometric enclosures.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Ink Chemistry, Compliance, and Adhesion Profiles<\/h2>\n

Selecting the correct ink type ensures permanent adhesion and regulatory compliance for medical and food-safe assemblies:<\/p>\n\n\n\n\n\n\n\n
Ink System<\/th>\nCuring Mechanism<\/th>\nCompliance & Performance Standards<\/th>\nChemical Rub Resistance<\/th>\n<\/tr>\n<\/thead>\n
Medical-Grade Low-VOC<\/td>\n2-Component Thermal Curing<\/td>\nUSP Class VI \/ ISO 10993 compliant, non-toxic, sterilized via Autoclave\/EtO.<\/td>\nHigh. Resists 50+ cycles of Isopropyl Alcohol (IPA) rubs.<\/td>\n<\/tr>\n
UV-Curable Inks<\/td>\nUltraviolet light Photopolymerization<\/td>\nRoHS \/ REACH compliant, low volatile monomer migration, fast processing.<\/td>\nExcellent. Hardened resin film resists abrasion and scratching.<\/td>\n<\/tr>\n
Solvent-Based Technical<\/td>\nEvaporative Solvent Thermal Curing<\/td>\nGeneral industrial standards, high-density pigmentation, low cost.<\/td>\nModerate. Suitable for non-exposed enclosures and toys.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

<\/p>\n

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Manufacturing Blueprint: Precision Registration, Surface Tension, and Ink Adhesion<\/h2>\n

Achieving pristine print lines on dynamic curved surfaces demands advanced engineering process controls during pre-treatment and stamping phases:<\/p>\n

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Automated Vision Alignment & \u00b10.05mm Registration<\/p>\n

Multi-color pad printing (such as logo branding alongside transparent medical graduation marks) requires micro-precision alignment. Jucheng\u2019s automatic printing stations use optical camera systems to correct rotational and translational deviations, maintaining tight multi-color registration tolerances within \u00b10.05mm.<\/p>\n<\/div>\n

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Corona & Flame Pre-treatment (PP\/PE Surface Activation)<\/p>\n

Unmodified polyolefins (PP\/PE) are non-polar and have ultra-low surface energy (typically under 30 mN\/m), preventing wet ink transfer. We integrate automated inline corona or flame treatment into our processes, raising the substrate surface energy above 38 mN\/m to ensure chemical cross-linking and prevent ink peeling.<\/p>\n<\/div>\n

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Rigorous Adhesion & Rub Validation (ASTM D3359)<\/p>\n

To verify printing durability, parts undergo standard ASTM D3359 cross-hatch tape testing (retaining a 5B rating) and chemical rub resistance tests (resisting 50+ rubs with 99% isopropyl alcohol), ensuring markings will not rub off under heavy use.<\/p>\n<\/div>\n

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Sterile Cleanroom Processing (Medical Consumables)<\/p>\n

For medical devices and syringe barrels (ISO 13485), printing must be completely free of particulate dust. Jucheng operates dedicated automatic pad-printing and UV curing ovens inside certified ISO Class 7\/8 cleanroom environments to maintain absolute purity.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

Pad Printing vs. Silk Screen Printing Technical Matrix Applying high-definition text, logos, and graduation markings requires selecting the correct print process based on part geometry: Printing Process Transfer Method & Tooling Typical Alignment Tolerance Dimensional Suitability Pad Printing (\u79fb\u5370) Deformable Silicone Pad & Etched Clich\u00e9 Plate \u00b10.05 mm to \u00b10.1 mm Excellent for 3D curved […]<\/p>\n","protected":false},"featured_media":2585,"template":"","process_category":[25],"class_list":["post-2565","process","type-process","status-publish","has-post-thumbnail","hentry","process_category-surface-finishes"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/process\/2565","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/process"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/types\/process"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/media\/2585"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/media?parent=2565"}],"wp:term":[{"taxonomy":"process_category","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/process_category?post=2565"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}