UV-curable resin composition and printed material
JP2026103710APending Publication Date: 2026-06-24JUJO CHEM CO LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- JUJO CHEM CO LTD
- Filing Date
- 2024-12-12
- Publication Date
- 2026-06-24
AI Technical Summary
Benefits of technology
【0018】 又、本発明の紫外線硬化性樹脂組成物を構成するに当たり、印刷層の、JIS Z 8701に準拠して得られるCIE色度座標における、L*値を93以上の値とし、a*値を4.7以下の値とし、かつ、b*値を0.31以下の値とすることが好ましい。 このようにCIE色度座標におけるL*値、a*値、及びb*値を、それぞれ制御することにより、バイオマス度を更に精度良く制御することができ、ひいては、形成された印刷層として、発色性を更に安定的に発揮することができる。
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Figure 2026103710000001_ABST
Abstract
The present invention provides an ultraviolet-curable resin composition that can broadly limit the biomass content, exhibits good adhesion to various substrates, and provides color development, as well as printed materials using the same. [Solution] An ultraviolet-curable resin composition that yields a printed layer with a biomass content of 10-60%, comprising: (A) 100 parts by weight of modified epoxy acrylate resin, (B) 10-120 parts by weight of plant-derived urethane (meth)acrylate resin, (C) 1-100 parts by weight of petroleum-derived (meth)acrylate resin, and (D) 1-30 parts by weight of a photopolymerization initiator, wherein the printed layer has a wavenumber of 1700 cm⁻¹ on the FT-IR chart. -1 Let A be the peak height, and the wavenumber be 1400 cm. -1 When the peak height is B, the value of B / A should be within the range of 0.1 to 0.64.
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