Item
Question name
Phenomenon
Possible Causes
Countermeasures
3. The board color is not shining enough
1. Insufficient exposure energy
2. Insufficient residence time after exposure
3. Development temperature is too high
4. The developing concentration is too high
5. Negative film transmittance difference
6. Insufficient ink sensitivity
1. Confirm Exposure Operating Parameters Measure Mesa Exposure Energy
2. Increase the exposure time after exposure
3. Replace the film with better light transmittance
4. Confirm development job parameters
5. Modify ink properties
9
Drooping
1. Plug hole ink outflow
1. Poor print job conditions
2. Ink viscosity is too low
3. Ambient temperature is too high or humidity is too low
1. Reduce ink printing
2. Reduce diluent additions
3. Placed horizontally after printing
4. Adjust ink characteristics
5. Control environment temperature and humidity
2. Line ink flow
1. Ink viscosity is too low
2. Poor ink drying
3. Ambient temperature is too high or humidity is too low
1. Reduce ink printing
2. Reduce diluent additions
3. Placed horizontally after printing
4. Adjust ink characteristics
5. Control environment temperature and humidity
3. Plate surface (including substrate and large copper surface) ink flow
1. Ink viscosity is too low
2. Pre-bake oven operation is unstable
3. Poor ink drying
4. Ambient temperature is too high or humidity is too low
1. Reduce ink printing
2. Reduce diluent additions
3. Placed horizontally after printing
4. Pre-bake job board can not be too dense
5. Confirm pre-baking conditions and measure the temperature rise curve of each area
6. Adjust ink characteristics
7. Control environment temperature and humidity
10
Poor pre-drying
1. When the second surface is printed, the work board counters the printing surface
1. Poor ink drying
2. Prebaked Oven Operation Unstable Operating Parameters
3. Insufficient residence time after pre-baking
4. Excessive printing pressure
5. Printing table is not clean
1. Confirm printing parameters
2. Confirm pre-baking conditions and measure the temperature rise curve of each area
3. Increase the residence time after pre-baking
4. Clean the work surface and let it dry
5. Adjust ink characteristics
2. After the pre-bake, fingerprint test marks
1. Poor ink drying
2. Prebaked Oven Operation Unstable Operating Parameters
3. Insufficient residence time after pre-baking
1. Confirm pre-baking conditions and measure the temperature rise curve of each area
2. Increase the residence time after pre-baking
3. Adjust ink characteristics
3. Exposure sticky film
1. Poor ink drying
2. Unstable oven operation
3. Insufficient residence time after pre-baking
4. Vacuum suction pressure is too large
5. Excessive pressure
1. Confirm pre-baking conditions and measure the temperature rise curve of each area
2. Increase the residence time after pre-baking
3. Confirm exposure job parameters and job conditions
4. Adjust ink characteristics
Source: Guangzhou Huitian Fine Chemical Co., Ltd.
We're one of the main Plastic Shopping Bags manufacturers in China. We has been specialized in custom Paper Bags for over 10 years for many famous brand: Levis, Spao, Zara, Chanel, Nike and Adidas. and JinYuan Plastic Grocery Bags is integrated flexible brand. Plastic Shopping Bags manufacturer with intention to provide a quick, environment friendly, quality consistent and cost effective flexible, brand honesty paper packaging solution. JinYuan is aimed to providing the best Plastic Shopping Bags brand logo color expression and helping build the brand honesty via bright color and trust-able Plastic Shopping Bags quality.
JinYuan Plastic Shopping Bags always takes the best modern making technology into your brand culture and by committing to invest in manufacturing technology and machinery: Heidelberg Printing Machine, Dark small Japan four folio colors printing machine, Roll Type Square Bottom Plastic Shopping Bags Machine to provide the best visual effect, and trust-able quality.
You can email artwork to us for an art proof of Small Plastic Bags before placing your order.
We prefer Plastic Grocery Bags artwork in .eps .ai or .pdf file formats, but if these are not available please email what you would like printed on the item.
Be sure to indicate the name and color of the item to be imprinted, along with the color ink you would like the imprint to be.
We will send you digital proof which must be approved before any imprinting is done.
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