KR102008934B1 - 발광 물질을 포함한 플라스틱 제품 및 그 진위 판별 방법 - Google Patents
발광 물질을 포함한 플라스틱 제품 및 그 진위 판별 방법 Download PDFInfo
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Abstract
Description
도 1은 본 발명의 일 실시예에 따른 플라스틱 제품을 개략적으로 나타내는 도면이다.
도 2는 본 발명의 일 실시예에 따른 플라스틱 제품 제조 방법을 설명하기 위한 흐름도이다.
도 3은 본 발명의 일 실시예에 따른 플라스틱 제품의 진위 판별 방법의 흐름도이다.
도 4는 도 3의 진위 판별 방법의 수행을 위해 사용할 수 있는 진위 판별 장치의 개략적인 블록도이다.
도 5 내지 도 7은 본 발명의 다른 실시예에 따른 플라스틱 제품을 개략적으로 나타내는 도면이다.
11: 기재
12, 12a, 12b: 발광 물질
2: 진위 판별 장치
Claims (16)
- 육안 식별에 의존하지 않고 전용 기기를 이용하여 진위 판별이 가능한 플라스틱 제품으로서,
플라스틱 소재로 이루어지는 기재;
상기 기재 내부에 분산되어 포함되고, 제1 파장을 포함하는 입사광에 대해 적외선 파장 범위인 제2 파장을 포함하는 방출광을 방출하는 발광 물질;
을 포함하며,
상기 진위 판별은 상기 입사광을 조사한 후 상기 방출광을 검출하여 수행되고,
상기 발광 물질은 육안으로는 인식되지 않는 비가시 물질이고,
상기 기재의 원료인 고분자 소재에 상기 발광 물질을 포함시켜 성형 원료를 제조한 후 상기 성형 원료를 이용하여 사출 성형함으로써, 기재 내에 발광 물질이 포함된 상태로 성형되는 것을 특징으로 하는 플라스틱 제품. - 제1항에 있어서,
상기 기재는 복수의 층을 포함하여 구성되고,
상기 발광 물질은 상기 복수의 층 중 일부 층에만 포함되는 것을 특징으로 하는 플라스틱 제품. - 제1항에 있어서,
상기 기재는 복수의 층을 포함하여 구성되고,
상기 복수의 층에는 서로 다른 발광 물질이 포함되는 것을 특징으로 하는 플라스틱 제품. - 제3항에 있어서,
상기 서로 다른 발광 물질은, 여기광 및 방출광 중 하나 이상이 다른 발광 물질인 것을 특징으로 하는 플라스틱 제품. - 삭제
- 제2항 내지 제4항 중 어느 한 항에 있어서,
이중 사출 또는 동시 사출 공정에 의해 제조되는 것을 특징으로 하는 플라스틱 제품. - 삭제
- 제1항 내지 제4항 중 어느 한 항에 있어서,
상기 발광 물질은, 다음의 일반식(1) 내지 (6) 중 적어도 어느 하나의 물질인 것을 특징으로 하는 플라스틱 제품.
일반식(1); Ba1-xSnAxO3 (0<x<0.4, A는 Li 또는 Na)
일반식(2); CaMoO4:M (M은 Nd3+, Yb3+ 및 Er3+로 이루어진 군에서 선택되는 1 종 또는 2 종 이상의 란탄족 금속 이온)
일반식(3); Y2SiV2O10:Nd3+ 및 Er3+
일반식(4); Y2O3:Yb 및 Ho
일반식(5); Y2O3:Yb 및 Tm
일반식(6); Y2O3:Yb 및 Er - 제1항 내지 제4항 중 어느 한 항에 있어서,
상기 발광 물질은 입자 형태로 기재 내에 포함되고,
상기 발광 물질의 평균 입자 크기는 0.3~10㎛ 범위인 것을 특징으로 하는 플라스틱 제품. - 제1항 내지 제4항 중 어느 한 항에 있어서,
상기 발광 물질은 입자 형태로 기재 내에 포함되고,
상기 발광 물질 입자 표면은 유기물로 처리되거나 코팅되는 것을 특징으로 하는 플라스틱 제품. - 제1항 내지 제4항 중 어느 한 항의 플라스틱 제품의 진위를 판별하는 방법으로서,
(a) 상기 플라스틱 제품에 상기 제1 파장을 포함하는 입사광을 조사하는 단계;
(b) 상기 플라스틱 제품으로부터 상기 제2 파장을 포함하는 방출광을 검출하는 단계;
(c) 상기 검출된 방출광을 이용하여 진위를 판별하는 단계;
를 포함하는 것을 특징으로 하는 방법. - 제11항에 있어서,
상기 (c) 단계는,
상기 제2 파장의 피크(peak) 값 또는 제2 파장을 포함하는 소정 파장 범위에서의 방출광 강도의 합(방출광 강도를 소정 파장 범위에서 적분한 값) 또는 제2 파장의 발광 수명(life time)을 기 설정된 임계값과 비교하는 단계를 포함하는 것을 특징으로 하는 방법. - 제1항 내지 제4항 중 어느 한 항의 플라스틱 제품의 진위를 판별하는 진위 판별 장치로서,
상기 제1 파장을 포함하는 입사광을 조사하는 광원부;
상기 제2 파장을 포함하는 방출광을 검출하는 방출광 검출부;
상기 방출광 검출부로부터 검출 결과를 제공 받아 플라스틱 제품의 진위 판별을 하는 인증부;
를 포함하는 것을 특징으로 하는 진위 판별 장치. - 제1항 내지 제4항 중 어느 한 항에 있어서,
상기 플라스틱 제품은 플라스틱 용기, 카지노 칩, 전자제품 케이스 중 어느 하나인 것을 특징으로 하는 플라스틱 제품. - 제2항에 있어서,
상기 플라스틱 제품은 내용물을 수용하기 위한 수용 공간이 구비된 수용부를 포함하는 플라스틱 용기이고,
상기 기재는 상기 수용 공간에 인접한 내측의 제1 기재 및 상기 제1 기재 외측의 제2 기재를 포함하고,
상기 발광 물질은 상기 제1 기재에는 포함되지 않고 상기 제2 기재에만 포함되는 것을 특징으로 하는 플라스틱 제품. - 삭제
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180147771A KR102008934B1 (ko) | 2018-11-26 | 2018-11-26 | 발광 물질을 포함한 플라스틱 제품 및 그 진위 판별 방법 |
| US17/294,857 US20220024243A1 (en) | 2018-11-26 | 2019-01-10 | Plastic product containing luminescent material and method for determining authenticity of same |
| PCT/KR2019/000390 WO2020111381A1 (ko) | 2018-11-26 | 2019-01-10 | 발광 물질을 포함한 플라스틱 제품 및 그 진위 판별 방법 |
| CN201980067588.3A CN112912255B (zh) | 2018-11-26 | 2019-01-10 | 包含发光物质的塑料产品及其真伪辨别方法 |
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| KR1020180147771A KR102008934B1 (ko) | 2018-11-26 | 2018-11-26 | 발광 물질을 포함한 플라스틱 제품 및 그 진위 판별 방법 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022050448A1 (ko) * | 2020-09-03 | 2022-03-10 | 한국조폐공사 | 형광물질의 강도를 이용한 보안 물품 및 그를 이용한 사용자 식별시스템 |
| KR20220105455A (ko) | 2021-01-20 | 2022-07-27 | 한국조폐공사 | 보안제품의 품질 검사 장치 및 방법 |
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| CN113604221B (zh) * | 2021-07-30 | 2024-10-11 | 中钞印制技术研究院有限公司 | 发光材料及其真伪检测方法、系统、防伪元件和防伪物品 |
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Also Published As
| Publication number | Publication date |
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| WO2020111381A1 (ko) | 2020-06-04 |
| US20220024243A1 (en) | 2022-01-27 |
| CN112912255B (zh) | 2022-08-09 |
| CN112912255A (zh) | 2021-06-04 |
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