LightFastnessTestForInkPrintedMaterials測試指引.docx

PACKAGING TEST METHOD TM No: QMKA-PE-056TITLE: Light Fastness Test For Ink Printed MaterialsReleased Date: Rev. No:Originating Department: Originating Author: 1. PURPOSE AND SCOPE1.1 Purpose: The method is to provide instructions to assess the light fastness of ink printed materials.1.2 Scope: The method is applicable for all print substrates such as paper, board，plastic films , thin metal plate ( i.e tins) and to all printing processes.2. EQUIPMENT AND MATERIALS USED IN TEST2.1 A xenon arc lamp apparatus with either air cooled or water cooled device;2.2 Blue wool references, in accordance with ISO 12040-1997;2.3 A grey scale is used for the determination of colour change in accordance with ISO 105-A02;2.4 Black-Panel-Thermometer, in accordance with ISO 12040-1997;2.5 Light source, is a xenon arc lamp with a colour temperature of 5500 K to 6500 K;2.6 The filter should completely absorb radiation at wavelengths below 310 nm. The transparency of the glass filters shall be at least 90 % in the range of wavelengths from 380 nm to 700 nm (simulating sunlight behind window glass).3. SAFETY AND HANDLING3.1 Test personnel must have the basic knowledge and been trained on the materials and equipment used in this test method. 3.2 Appropriate personal protective equipment (PPE) should be worn if necessary.4. SAMPLES TO BE TESTED 4.1 Test samples should be produced at least 24 hour prior to test. Preconditions test samples for at least 2 hours at room temperature prior to test. 5. PROCEDURE5.1 The test pieces and the blue wool references are mounted together as closely as possible in a well-ventilated test chamber;5.2 Use an opaque board with the thickness of 0.5 mm at least to partly cover the test pieces and the blue wool references;5.3 The temperature of the test pieces shall not exceed 45 as measured by the Black-Panel-Thermometer. Expose the samples to the light in a prescribed manner for a time sufficient to cause a distinct change, which is defined as equal to or less than grade 3 of the grey scale. Take out the test pieces and blue wool reference from the chamber. 6. INTERPRETATION OF RESULTS6.1 Compare the color change between the test pieces and blue wool reference, give the test piece a light-fastness rating that corresponds to the number of the blue wool reference that has the same level of color change.If the change of the test piece falls between the two successive numbers of blue wool references, the light fastness rate should be given the two corresponding numbers (e.g. 6-7). This rating method is not applicable to light fastness rating below 5. If the test pieces color darkens, this test method is not applicable.6.2 The light-fastness rating should be 6 or above.7. REFERNCES7.1 ISO 12040-1997 Graphic technology - Prints and printing inks - Assessment of light fastness using filtered xenon arc light7.2 GB/T 22771-2008 Graphic technology - Prints and printing inks - Assessment of light fastness using filtered xenon arc light 7.3 ISO 105-A102 Grey scale for assessing change in color8. ANNEXESN/ADOCUMENT HISTORICAL INFORMATIONREVDATE INITIATEDCHANGE ORDERREASONChooseCause or ReviewDESCRIPTION 包裝材料測試方法 TM No:QMKA-PE-056標題: 印刷品耐曬測試方法發(fā)行日期：版本號：起草部門：起草人： 1.0 目的和范圍1.1 目的：本程序規(guī)定了測試印刷品耐光性的方法；1.2 本程序適用于紙、紙板、塑料薄膜、金屬薄板印刷承印物，并適用于所有的印刷工藝。2.0 實驗所需儀器及材料2.1 附有空冷或水冷裝置的氙弧燈設備；2.2 標準藍色羊毛參考物，應符合ISO 12040-1997的規(guī)定；2.3 評定變色用灰色樣卡，應符合ISO 105-A102的規(guī)定；2.4 黑板溫度計，應符合ISO 12040-1997的規(guī)定；2.5 光源，色溫為5500K-6500K的氙弧燈；2.6 濾光器，濾光器應能夠吸收310nm以下的輻射，且在380nm-700nm波長范圍內(nèi)的透過率不低于90%（模擬透過玻璃窗戶后的陽光）。3.0 安全與操作3.1 測試人員必須具備本測試方法中所涉及到的材料及設備的基本知識，并已受過相應的培訓。 3.2 如有必要需使用適當?shù)姆雷o設備 4.0 測試樣品準備4.1 取生產(chǎn)后24小時的待測包材，在室溫下放置2小時以上，并在此溫度下進行測試；5.0 測試步驟5.1 將測試樣品和藍羊毛標準樣品盡可能接近地擺放在通風良好的測試箱中；5.2 用不透明板部分遮蓋測試樣品和藍羊毛標準樣品，不透明板的厚度至少應為0.5 mm；5.3 用黑板溫度計測定測試樣品，溫度不能超過45,將測試樣品和藍羊毛標準樣品放在氙弧燈光下曝曬，直至3級藍羊毛標準發(fā)生明顯變化,所謂的明顯變化是指等于或小于評定變色灰色樣卡3級。取出測試樣品和藍羊毛標準樣品；6.0 結(jié)果判定6.1 對比測試樣品和藍羊毛標準樣品的顏色變化，確定和測試樣品發(fā)生相同顏色變化程度的藍羊毛標準樣品的等級，該等級即為測試樣品的耐光等級。如果測試樣品的變化落在兩個連續(xù)等級之間，則應給出兩個相應的等級（例如6-7），這種分級方法不適用于5級以下的等級。如果測試樣品顏色變深，則該方法不適用。6.2 要求耐曬等級大于或等于6級7.0 參考文獻 7.1 ISO 12040-1997 Graphic technology - Prints and printing inks - Assessment of light fastness using filtered xenon arc light7.2 GB/T 22771-2008印刷技術(shù)