Overview
A paste spectrophotometer is a precision instrument designed to analyze the color of viscous or semi-solid materials. Unlike traditional spectrophotometers, it accommodates uneven surfaces and opaque samples, making it indispensable in industries like coatings, cosmetics, and food processing. The device employs advanced optics to capture spectral data, converting it into quantifiable color values (e.g., ΔE for color difference). Modern versions often include software integration for real-time quality control and compliance with international color standards.
Structure and Working Principle
The instrument typically consists of a light source (e.g., LED or xenon), a diffraction grating to split light into wavelengths, and a sensor array to detect reflected or transmitted light. For paste samples, a contactless or minimal-contact measurement head prevents contamination. Data is processed using algorithms like CIELAB, which breaks color into lightness (L*) and chromaticity (a*, b*) components. Some models also support metamerism index calculations for material-specific evaluations.
Key Features
High-end paste spectrophotometers offer features like multi-angle measurement (e.g., 45°/0° or sphere geometry) to account for surface texture. They often include UV filters to eliminate fluorescence interference, critical for products like whitening cosmetics. Portability is another advantage, with handheld models enabling on-site inspections in manufacturing plants. Advanced units may provide pass/fail tolerances and trend analysis for batch consistency.
Application Areas
In the paint industry, these devices ensure batch-to-batch color uniformity, especially for textured coatings. Cosmetic manufacturers use them to match lipstick or foundation shades, while food producers monitor product appearance (e.g., chocolate, sauces). Pharmaceutical applications include verifying the color of ointments and gels for quality control. The instrument’s versatility also extends to plastics and ceramics where paste intermediates are common.
Maintenance and Precautions
Regular calibration with certified white tiles is essential to maintain accuracy. The lens and sample port should be cleaned with lint-free wipes to avoid residue buildup, which can skew readings. Avoid exposing the device to extreme temperatures or humidity, as this may damage sensitive components. For prolonged storage, remove batteries and use protective cases to prevent dust ingress.
B2B Procurement Guide
When sourcing a paste spectrophotometer, prioritize suppliers with ISO 17025-certified calibration services. Request sample testing to validate performance with your specific materials (e.g., high-viscosity pastes). Consider total cost of ownership, including software updates and warranty coverage. For global operations, ensure the device complies with regional standards like EU’s EN 15886 for color measurement.
Related Manufacturers
- 主营：分析仪、折射仪、风速计、色差仪、振动仪、湿膜轮、工业led、中高温、lcr电桥、测量仪、uv-int160、tes-1352h、测温仪、扭矩仪、计数器、样品瓶、rionnc-72、示波器、hch-2000d、手套箱、干燥机、照度仪、测振仪、风量罩、紫外灯
- 主营：配色仪、色度仪、测色仪、色差仪、分光测色仪、分光色差仪、色差计、测试卡、对色灯箱、对色灯管、光泽度仪、测色灯箱、测试图卡、色度分析仪、标准光源箱、颜色测量仪、高光谱像机、高光谱成像仪、分辨率测试卡、ISO12233测试卡、印刷密度仪、透光率仪、雾度仪、雾度计、高精密颜色检测仪
- 主营：流速流量仪、大气采样器、黑烟识别器、分光、气体、采样器、检测仪、林格曼黑度仪、数采仪、油气回收检测仪、生物安全柜、天平、土壤、β射线扬尘、风速仪、测温仪、测距仪、辐照计、辐射仪、在线自动水质采样器、油烟检测仪、烟尘烟气分析仪、恒温恒湿称重系统、噪声计、粉尘仪、重金属多参数水质检测仪
- 主营：氙灯老化试验箱、紫外加速老化试验机、盐雾腐蚀试验箱、色差仪、红外膜厚仪、黄色指数仪、雾度仪、液体色度仪、HunterLab
- 主营：测漆仪、测色仪、色差计、色差仪、分光密度仪、比色计、校色仪、扫描仪、比色仪、比色灯、对色灯箱、检测仪器、色彩测量、色差测量、色度分析仪、标准光源箱、色差密度仪、色度测试仪、色差分析仪、色差检测仪、色彩分析仪、检测分析仪、颜色分析仪
- 主营：气体报警仪、气体检测仪、气体测试仪
- 主营：测厚仪、测量仪、薄膜塑料、精密色差仪、国产色差仪、色彩色差仪、分光测色仪、颜色色差仪、电脑色差仪、手提式色差仪、便携式色差仪、小孔径精密、精密光泽仪、单角度精密
- 主营：光泽度计、标准光源箱、配色系统、色差仪、分光测色仪、分光光度计、汽车车漆分光测色仪、纺织面料色差仪、印刷包装色差仪、Ci7800色差仪、台式实验室色差仪、小口径曲面色差仪、迷你便携色差仪、色母粒分光测色仪、服装布料大口径色差仪、调色软件、CM-17d测色仪、CM-3700A、手机外壳色差测试仪
- 主营：培养箱、分析仪、检测仪、报警仪、测量仪、酸度计、风速仪、蓝牙、称重系统、室内检测仪器、甲醛检测、测定仪、声校准器、酸碱浓度计、流量计、采样器、消解器、机器人、振动检测分析仪、测试仪、环保第三方检测、环境检测、综合采样器、生物安全柜、浊度仪
- 主营：分析仪、采样器、监测仪、压力计、烟度计、检测箱、流量计、检测仪、直读仪、传感器、速测仪、消解仪、报警仪、测油仪、车尾检测、溶解氧仪、流量校准器、恒温加热器、水质测定仪、表面沾污仪、数字风速仪、细菌培养箱、生物培养箱、火焰模拟器、智能采样仪
- 主营：黑度仪、场强仪、检测仪、风速仪、检测箱、外置泵、电磁兼容、自动采样器、流速监测仪、紫外辐照仪、水质监测仪、黑烟识别器、黑球指数仪、水质采样器、水质速测箱、风速测量仪、甲醛测试仪、明渠流量计、孔口流量计、微电脑控制器、电磁场测量仪、微生物采样器、手持式抓拍仪、恒温恒湿设备、气溶胶采样器
- 主营：养护箱、试验箱、集装箱、色彩色差仪、试验机、测定仪、养护室、混凝土、恒温恒湿、水泥压力、试验仪器、抗压一体机、移动式标准
- 主营：台式orp、噪声计、探测器、红外线、检测仪、声级仪、测色仪、ysi水质、采样仪、盐度仪、ph滴定仪、手持式ph、便携式ph、ph测量仪、三目反射、ysi电导率、溶解氧仪、cod测定仪、ysi酸度计、高压蒸汽、二氧化硅、cod消解仪、bod测定仪、电子天平、电阻率仪
- 主营：养护箱、震摆仪、点荷仪、光栅分光测色仪、混凝土、测试仪、测定仪、对色灯箱、橡胶厚度、油漆涂料、凸试验机、手动升降、腻子涂刮、砂浆试模、漆膜厚度、涂料流平、涂料平板、数显砂浆、水泥胶砂、数显旋转、水泥压力、金属钢制、荧光紫外、乳化沥青、涂4粘度计、旋转粘度计
- 主营：粘度仪、试验箱、划格板、分光测色仪、塑料片、硬度计、粘度计、黏度杯、流平仪、白度仪、实木地板、建筑涂料、划痕测试仪、划格试验仪、贴面胶合板、杯突试验仪、弯曲试验仪、锥板黏度计、自动涂膜机、耐擦伤测试仪、多功能耐擦洗仪、智能刮板细度仪