Preforms datang dalam berbagai ukuran, bentuk, dan warna. Mereka dapat berkisar dari buram hingga tembus cahaya atau transparan, jadi memerlukan teknik pengukuran yang berbeda tergantung pada jenis sampel.

 

Preforms yang buram tidak dapat ditembus oleh cahaya dan paling baik diukur menggunakan instrumen reflektansi Diffuse d/8 Sphere.

 

Translucent Preforms memungkinkan cahaya melewatinya, tetapi hanya menyebar, sehingga objek di sisi lain tidak dapat dibedakan dengan jelas. Kedua metode pengukuran reflektif dan transmitansi dapat bekerja dengan baik tergantung pada transparansi sampel. Sebagai aturan praktisnya,

 

• – Jika pada sample panjang jalur tempat pelanggan Anda dapat melihat sedikit detail di ibu jari atau jari Anda melalui bentuk awal, maka transmitansi adalah metode pengukuran yang sesuai.
• – Jika Anda tidak dapat melihat sedikit detail, maka pantulan lebih sesuai.

 

Panjang jalur didefinisikan sebagai ketebalan sampel dari tempat cahaya masuk ke tempat keluarnya sampel tersebut.

 

Transparan Preforms memungkinkan cahaya untuk melewati dengan sedikit atau tanpa gangguan atau distorsi sehingga objek di sisi lain dapat dilihat dengan jelas. Bentuk awal ini hanya dapat diukur dengan menggunakan instrumentasi transmisi.

 

Selain itu, metrik dan indeks tertentu seperti CIE L*a*b* Color, Yellowness, Whiteness, atau Haze memerlukan penggunaan geometri tertentu dan metode pengukuran tertentu. Untuk pemilihan instrumen yang tepat untuk aplikasi Anda, silakan lihat bagian berikut: Bagian Solusi HunterLab..

 

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Vista

Spektrofotometer Vista BARU dengan kemampuan unik untuk menangkap warna transmisi jarak pandang dan kabut dengan satu pengukuran adalah pengganti ColorQuest XT.

Lihat Lebih Lanjut

AN 1001.01 ALPHA

Measuring the Water Whiteness of Liquids Using the APHA Index.

 

AN 1002.01 Standard Observer

CIE Standard Observers and calculation of CIE X, Y, Z color values.

 

AN 1005 HunterLab vs CIE Lab

Measuring Color using Hunter L, a, b vs CIE 1976 L*a*b*.

 

AN 1007.01 Geometric Attribute

Measuring the Geometric Attribute of Your Products.

 

AN 1013 Averaging

Averaging in Color Measurement.

 

AN 1018 Hitch Stdz

Using Hitch Standardization on a Series of Color Measuring Instruments.

 

AN 1031 Identification of Measurement Parameters

Identification of Measurement Parameters.

 

AN 1033 Color versus Appearance

Understanding the difference between measuring color and measuring appearance.

 

HunterLab Solution Matrix

Geometry, Measurement Modes, and Indices.

 

MM 5019 Measuring Flat Opaque Solids with ColorQuest XE

Measurement method for flat, opaque solids using the UltraScan PRO, UltraScan VIS, or ColorQuest XE.

 

MM 5001 Measuring Translucent and Opaque Bottles with ColorQuest XE

Measurement method for translucent and opaque bottles using the UltraScan VIS, UltraScan PRO, and ColorQuest XE.

 

MM 5002 Measuring Transparent Bottles with ColorQuest XE

Method for measuring transparent bottles using the ColorQuest XE, UltraScan PRO, and UltraScan VIS.

 

MM 5006 Measuring Coated Glass with ColorQuest XE

Measurement method for coated glass using the UltraScan PRO, ColorQuest XE, and UltraScan VIS.

 

MM 5013 Measuring Plastic Pellets with ColorQuest XE

Measurement method for plastic pellets using the ColorQuest XE, UltraScan PRO, or UltraScan VIS.

 

MM 5015 Measuring Dense or Opaque Bottle Preforms with ColorQuest XE

Measurement method for opaque or dense bottle preforms using the UltraScan VIS, ColorQuest XE, or UltraScan PRO.

 

MM 5016 Measuring Transparent Bottle Preforms with ColorQuest XE

Measurement method for metal surfaces using the UltraScan VIS, UltraScan PRO, or ColorQuest XE.

 

MM 5021 Measuring Translucent Solids with ColorQuest XE

Measurement method for flat, translucent solids using the UltraScan PRO, UltraScan VIS, or ColorQuest XE.

 

MM 5022 Measuring Metal Surfaces with ColorQuest XE

Measurement method for metal surfaces using the UltraScan VIS, UltraScan PRO, or ColorQuest XE.

 

MM 5026 Measuring Translucent and Opaque Bottles with UltraScan VIS

Measurement method for translucent and opaque bottles using the UltraScan VIS, UltraScan PRO, and ColorQuest XE.

 

MM 5027 Measuring Transparent Bottles with UltraScan VIS

Method for measuring transparent bottles using the ColorQuest XE, UltraScan PRO, and UltraScan VIS.

 

MM 5031 Measuring Coated Glass with UltraScan VIS

Measurement method for coated glass using the UltraScan PRO, ColorQuest XE, and UltraScan VIS.

 

MM 5038 Measuring Plastics Pellets with UltraScan VIS

Measurement method for plastic pellets using the ColorQuest XE, UltraScan PRO, or UltraScan VIS.

 

MM 5040 Measuring Opaque or Dense Bottle Preforms with UltraScan VIS

Measurement method for plastic pellets using the ColorQuest XE, UltraScan PRO, or UltraScan VIS.

 

MM 5041 Measuring Transparent Bottle Preforms with UltraScan VIS

Measurement method for metal surfaces using the UltraScan VIS, UltraScan PRO, or ColorQuest XE.

 

MM 5044 Measuring Flat Opaque Solids with UltraScan VIS

Measurement method for flat, opaque solids using the UltraScan PRO, UltraScan VIS, or ColorQuest XE.

 

MM 5046 Measuring Flat Translucent Solids with UltraScan VIS

Measurement method for flat, translucent solids using the UltraScan PRO, UltraScan VIS, or ColorQuest XE.

 

MM 5047 Measuring Metal Surfaces with UltraScan VIS

Measurement method for metal surfaces using the UltraScan VIS, UltraScan PRO, or ColorQuest XE.

 

MM 5051 Measuring Translucent and Opaque Bottles with UltraScan PRO

Measurement method for translucent and opaque bottles using the UltraScan VIS, UltraScan PRO, and ColorQuest XE.

 

MM 5052 Measuring Transparent Bottles with UltraScan PRO

Measurement method for opaque or dense bottle preforms using the UltraScan VIS, ColorQuest XE, or UltraScan PRO.

 

MM 5056 Measuring Coated Glass with UltraScan PRO

Measurement method for coated glass using the UltraScan PRO, ColorQuest XE, and UltraScan VIS.

 

MM 5063 Measuring Plastics Pellets with UltraScan PRO

Measurement method for plastic pellets using the ColorQuest XE, UltraScan PRO, or UltraScan VIS.

 

MM 5065 Measuring Opaque or Dense Bottle Preforms with UltraScan PRO

Measurement method for transparent bottle preforms using the UltraScan VIS, ColorQuest XE, or UltraScan PRO.

 

MM 5066 Measuring Transparent Bottle Preforms with UltraScan PRO

Measurement method for metal surfaces using the UltraScan VIS, UltraScan PRO, or ColorQuest XE.

 

MM 5069 Measuring Flat Opaque Solids with UltraScan PRO

Measurement method for flat, opaque solids using the UltraScan PRO, UltraScan VIS, or ColorQuest XE.

 

MM 5071 Measuring Flat Translucent Solids with UltraScan PRO

Measurement method for flat, translucent solids using the UltraScan PRO, UltraScan VIS, or ColorQuest XE.

 

MM 5072 Measuring Metal Surfaces with UltraScan PRO

Measurement method for metal surfaces using the UltraScan VIS, UltraScan PRO, or ColorQuest XE.

 

Plastic Industry Brochure

Color measurement solutions for the plastics industry.