CHNSpec Technology （Zhejiang）Co.,Ltd Company News

​   We received another sample from our customer. The customer's sample is plastic sheet and they need measure color, haze and transmittance for their samples. We will measure with haze test equipment CS-720 and share test method and result.     1. Haze and Transmittance Test Condition   1). Standard: ASTM 2).Light Source: C 3). Test Parameter: Haze and Total Transmittance 4). Instrument: haze test equipment CS-720   2. Test Method 1). Choose one point on one sample to measure.   3. Sample Pictures and Test Result Sample Picture   Sample A and B   Test Result of Sample A   Test Result of Sample B   When measure the samples, we checked it by eyes. Sample A is much clearer than sample B. The test result is same as we see. Haze Sample A 89.7 24.1

Plastic films can be widely used for packing industry and printing industry. In China, 20% of the total output of plastic products is plastic film, and it belongs to one of the fastest growth catalogue among all plastic products.   We receive the plastic film samples from one of our customers. Today we will introduce how to measure the plastic film with the haze measurement instrument CS-700.   Test Condition 1. Standard: ASTM 2.Light Source: C 3. Test Parameter: Haze and Total Transmittance 4. Instrument : haze measurement instrument CS-700 and BYK haze meter 4727                        Haze Meter CS-700   Test Method 1. Choose one point on one film sample to measure.   Sample Pictures and Test Result     Sample Series Sample Name Haze (BYK) Haze (CHNSpec) Transmittance (BYK) Transmittance (CHNSpec) Muestra A   Sample 1 9.31 9.69 88.7 88.3 Sample 2 9.34 9.78 88.8 88.3       Sample Series Sample Name Haze Haze (CHNSpec) Transmittance Transmittance (CHNSpec) Muestra B Sample 1 2.22 2.41 89.4 88.7 Sample 2 2.24 2.47 89.4 88.8       Sample Series Sample Name Haze Haze (CHNSpec) Transmittance Transmittance (CHNSpec) Muestra C Sample 1 0.93 0.99 93.2 92.3 Sample 2 0.88 0.93 93.2 92.3 Sample 3 0.87 0.90 93.2 92.2   The above are the test result of CHNSpec haze meter and BYK haze meter. Customer is satisfactory with the test result.   CHNSpec Tech is specialized on manufacturing instruments for color, gloss and haze measurement. New products for transmittance and reflectance measurement benchtop spectrophotometer, new haze meter with lower price will come out within this year. Any inquiry, you are welcome to contact us.  

Recently we get an order from university.The professor need to measure flower petal.Today we will share how to measure it.   Step 1. Prepare the instrument and samples. We are using spectrophotometer CS-660 with 4mm aperture (Because some of the petal is small).     Step 2. Switch on the instrument and then calibrate it (white calibration and black calibration)     Step 3. Put the spectrophotometer test aperture on the petal, then press “print”, we can view the measurement area by camera to avoid measurement error. (Camera is a very good function when the samples are small or with pattern) At last, press “test”, we can see the sample L,a,b value on screen     Step 4. Press “menu”, we can enter into the color difference measurement page. Then press “test” we can get the color difference between different flower petals.     Color Difference Value of the Flower Petals   Sample Name L a b Delta E*ab Target 77.61 -4.51 77.28 -- Sample 84.65 -1.62 95.53 19.77 -- Delta L:7.04 Delta a:2.88 Delta b:18.25 --  

Recently, we have done a project for a customer to measure chemical powder reflectance and liquid transmittance measurement with our benchtop spectrophotometer CS-820.   The following are the customer’s sample pictures.     Now we will introduce how to measure chemical powder and liquid color. Chemical Powder Reflectance Color Measurement Step 1. Switch on the instrument, and then calibrate it.     Step 2. Open the Color QC software. Connect the instrument with PC by USB cable. Put the sample on the measurement aperture and fix it with the fixture.       Step 3. In order to make sure the accuracy, we will measure 3 points on one sample. After measurement, we can see the test result directly on the software.     Chemical Liquid Transmission Color Measurement Step 1. Choose “Transmission” on software.       Step 2. Do transmittance calibration on the instrument. (White calibrations is done with glass cell and distill water and black calibration is with calibration cover.)             White calibration             Black Calibration              Step 3. Measure the samples and then get color value on software directly.     Spectrophotometer can help to get color value faster. It will save time and higher accuracy then visual method.   CHNSpec Tech is specialized on manufacturing colorimeter, spectrophotometer, gloss meter and haze meter for products color, gloss and haze measurement. If any inquiry, welcome to contact me for more details.    

CHNSpec launches portable small aperture gloss meter CS-300S in May, 2018. Small aperture gloss meter can be widely used for small and curve material gloss measurement.     Application   Advantages   2x3mm small aperture; Repeatability reaches 0.2GU; Free PC software to test and generate test report. 3000mAh battery for continuous measurement 50000 times.   Technical Data   Model CS-300S Test Angle 60° Measurement Range 60°:0-600GU Reproducibility 0-100:0.1GU ≥100: 1GU Test Mode Simple and Statistic Mode Light Source Lifetime 300 million; 10 years Measurement Time Less than 1s Storage Memory 100 pcs target, 10000 pcs samples Instrument Size 165x51x77mm Instrument Weight About 400g Language English and Chinese Battery 3000mAh lithium battery Interface USB, Bluetooth (option) Working Temperture 0-40℃ Standard Accessories 5V/1A charger, USB cable, operate manual, CD (PC software), calibration tile   CHNSpec Tech is specialized on manufacturing colorimeter, spectrophotometer, gloss meter and haze meter for products color, gloss and haze measurement. If any inquiry, welcome to contact me for more details.

CHNSpec Tech launches haze meter in 2018. In order to let more customers know the instruments better. Total we will compare its technical data, price and test result with BYK haze meter.                            CHNSpec                                                               BYK   The following is the technical data sheet for haze meter from CHNSpec and BYK. Parameter is very close to BYK4272.     Test Result Comparing with BYK haze meter for measuring standard haze sheet. Test result is closed to BYK for both ASTM and ISO standard.     Advantages of CHNSpec haze meter comparing with BYK and other brands.   1). No need to warm up, after instrument is turned on we can calibrate and measurement directly; 2). Our instrument adopts a spectrometer which can obtain the transmission spectrum of the sample for higher accuracy measurement; 3). Besides transmittance and haze measurement, CS-720 color and haze meter can also measure sample chromaticity value such as CIE Lab,LCh,CIE Luv,XYZ,Yxy, Hunter Lab MunsellMI,CMYK, WI(ASTM E313-00,ASTM E313-73，CIE/ISO，AATCC，Hunter，Taube Berger Stensby), YI(ASTM D1925，ASTM E313-00，ASTM E313-73),Tint(ASTM E313-00), APHA, Pt-Co, Gardner, Color difference (ΔE*ab,ΔE*CH,ΔE*uv,ΔE*cmc(2:1),ΔE*cmc(1:1),ΔE*94,ΔE*00); 4). Price is only 1/3 of BYK and other brands.   We are specialized on manufacturing colorimeter, spectrophotometer, haze meter and gloss meter for products color, haze and glossiness measurement. Our products have gotten 10 patents including 1 American patent till now. Our instrument stability and precision is very good. If any inquiry for our instrument, please do not hesitate to contact me, I will help to recommend the most suitable instrument.

Recently, we receive a custom inquiry for measuring transparent plastic pellets. This kind of material can be used for making transparent plastic or as additive for plastic material for special purpose such as fire retardant, wear resistance, etc.     Today we will introduce how to measure plastic pellet with spectrophotometer and glass cell (40x40mm). Transparent plastic pellets need to measure color (CIE-lab) and yellowness index (YI). The follow is the sample pictures we get from customer.     Test Condition 1. Mode: Reflectance 2. Light Source: D65 3. Parameters need to Measure: YI (ASTM E313-2010) and L*a*b, ΔE*ab Test Method 1. Every sample we measure 3 times and note down the test result. 2. We pour the sample out from glass cell after each test to assure test accuracy.   The following are the test results for all 4 samples: Sample Name Parameters 1st Test Result 2nd Test Result 3rd Test Result 2# S-685AL Yellowness Index (YI) 5.64 5.56 5.33 L 67.83 67.84 67.39 a -1.22 -1.23 -1.22 b 2.26 2.71 2.61   Sample Name Parameters 1st Test Result 2nd Test Result 3rd Test Result 5# S-195AL Yellowness Index（YI） 11.36 11.32 11.10 L 67.29 68.01 67.96 a -1.4 -1.37 -1.37 b 5.15 5.17 5.08   Sample Name Parameters 1st Test Result 2nd Test Result 3rd Test Result 3# B-785A05 Yellowness Index（YI） -4.49 -4.57 -3.91 L 66.57 66.5 65.88 a 0.15 0.04 0.09 b -1.77 -1.49 -1.51   Sample Name Parameters 1st Test Result 2nd Test Result 3rd Test Result 3# K98-1 Yellowness Index（YI） 0.72 0.90 0.76 L 68.24 68.83 68.53 a -0.88 -0.87 -0.89 b 0.63 0.72 0.68 Benchtop spectrophotometer with large aperture 25.4mm is very suitable to measure plastic pellet materials. Instrument repeatability and precision are both very good. If any similar project inquiry, you are welcome to contact us for more details. We will help to recommend the most suitable instrument for customers.  

We get sample fabric from one of textile customer. For now, they control the color by human eye. Samples color difference value should be within Delta E*ab 0.8 comparing with the target.   Target Fabric             Sample Fabric   Today we will introduce how the measure the color of it with our color spectrophotometer CS-820.   Test Condition 1. Mode: Reflectance 2. Light Source and Angle: D65/10 degree 3. Parameters need to Measure: color value L*a*b and ΔE*ab. 4. Because the fabric is translucent, we will use one A4 paper to make sure no light will enter into instrument to affect test result. 5. Make sure the test direction is same when measuring target and fabric because fabric is woven.   Test Method 1. Measure the color of the target fabric firstly. Then get its L*a*b, then measure the sample fabric to get the color differenceΔE*ab.   The following are the test result: Company with the target, sample contains too much white and total color difference is Delta E*ab 1.43. These two colors are difference from each other.     Sample Name Parameters Test Value Target Fabric L 43.39   a 0.05   b -0.52 Sample Fabric L 44.71   a -0.48   b -0.47   Delta E*ab 1.43   If any color measurement inquiry, you are welcome to contact us for more details. We will help to recommend the most suitable instrument for customers. Email: ivyzhang@colorspec.cn and Cell Phone: +86 18768499725.

This week we visit a textile customer who wants to measure the fabric color and share the test result with their customer.   Customer provides 8 samples for measurement and compares our textile spectrophotometer CS-820 test result with Datacolor SF800.   Measurement Condition   1. Mode: Reflectance 2. Light Source and Angle: D65/10 degree 3. Parameters need to Measure: color value CIE L*a*b   Test Method   Textile fabric will be fold into 4 layers like shows in the following pictures. (To make sure no light will enter into the instrument to affect the test result.)     Test Result of Textile Spectrophotometer SF800 and CS-820   From the above table that we can see our test result is very close to data color from Delta E0-0.8 for measuring same fabric with same measurement method. Customer is satisfied with our test result.   If any inquiry for color, haze and gloss measurement, you are welcome to contact me for more details. We will help to recommend the most suitable instrument for customers. Email: ivyzhang@colorspec.cn and Cell Phone:+86 18768499725.

There any many haze meter manufacturers. How to choose a suitable haze meter? Today we will introduce a haze meter who can provide high accuracy for transmittance measurement. Haze meter CS-700 made by CHNSpec support both ASTM and ISO measurement standard.   ISO compensation method can provide higher accuracy transmittance value. We will introduce it now.     The above picture is not using the compensation method to measure transmittance, because the integral sphere's area is different which causes the integral sphere efficiency to be not high, thus has the certain influence to the measurement result accuracy.     The above picture is using the compensation method to measure the transmission. A compensating port is added to the integral sphere, for the first measurement, sample is placed at the compensation port, for the second measurement, sample is placed at the measuring port, while the compensation port is open, the integral sphere area of the two measuring process is identical, the integral sphere is consistent, so that the measurement result is more accurate.   Haze meter made by CHNSpec Tech support haze and transmittance measurement in both standard to meet different customer requirement. Any interest, welcome to contact us.

  Computer color matching system includes spectrophotometer and color matching software. Spectrophotometer is mainly for color measurement and transferring the data into the color matching software. Color matching software will analysis the test result and calculates the best recipes/formula for color matching.   Advantages of Color Matching Software comparing with chemist   1. Simple operation and repaid result : From sample measurement to get recipe, only need about 5-10 minutes. 2. Software can provide different kinds of recipes for the user. The user can choose according to the raw materials cost or raw materials left in warehouse. 3. Software cost is cheaper than hiring more people. One professional chemist with software will be enough for color matching. 4. Recipe get from color matching software is high accuracy and increasing the working efficiency of chemist 5. The color matching quantity is controllable, waste material can also be used for color matching which saves cost.   How to do color matching?   Step 1. We need upload the pigment information and basic material into the software.     Step 2. Set the base information, measurement condition, color layer thickness, etc. Then measure the sample with spectrophotometer.   Sample   Color Matching Software   Step 3. After measurement, press “calculation” on software, then software will start to calculate the formula. Software will provide 3 formulas for the user. It will tell what kind of pigment and how much pigment should be used for color matching.   We make the samples according to the recipe and compare the color different value Delta E*ab with the target sample. The color different is very small. The following picture is the result. (The smaller the color difference value is, the smaller the color difference is.) According to the result, we can see sample made according to formula 3 is very close to the target. Delta E*ab 0.17 is very small color difference.     Name Color Difference Value Comparing with Target Formula 1 Delta E*ab 1.92 Formula 2 Delta E*ab 0.92 Formula 3 Delta E*ab 0.17

Labels or tags are commonly seen in our daily life. In the production process of the labels, the customer will give a sample as a target or give a pantone color number. Then they will ask the label manufacturer to make a sample. After the sample is made, the label manufacturer will compare the sample with target or pantone color number and let the customer confirm it.   After the sample is confirmed, then manufacturer will start mass production. Today, we will introduce how print colour tester CS-600C can help to check color on labels.   Measurement Condition 1. Mode: Reflectance 2. Light Source and Angle: D65/10 degree 3. Parameters need to Measure: color value CIE L*a*b and △E 4. Instrument Model: CS-600C Print Colour Tester   Test Method 1. Prepare the instrument and samples. Do black and white calibration for the instrument.   Sample Print Colour Tester   2. Put the instrument on the sample, then press test, we can see the test result color value CIE-lab value directly on instrument screen.   Test Result 1   3. Press “menu” we can enter into sample measurement interface, press “test” we can see the sample color lab value and the color difference between it and the sample.   Test Result Meaning   Print colour tester CS-600C also has another function. After measure the sample, it can help to find 3 pantone color number from its library which can save customer’s time on find color number from pantone color swatches.   Spectrophotometer for Packing Logo Color Measurement