In the process of film coating, the most common quality failure is that the film and the printed product of the film product are not bonded properly and are easy to fall off, which will directly affect the use effect and life of the subsequent film product. In order to solve this problem, it is necessary to comprehensively consider the combination of printing ink, printing process and laminating process.
Printing ink
The laminating process is relatively simple, mainly by bonding the printed product and the film together by an adhesive. The porous porous structure on the surface of the non-image area of ​​the printed product is beneficial to the penetration and diffusion of the adhesive. Therefore, the ink in the printed image area is the main reason for the mismatch between the printed product and the film.
The effect of the ink on the filming effect is mainly the effect of the surface properties of the ink after drying on the adhesive. When the ink is dried, the main component of the surface layer is an ink thinner, and some other substances are also contained. For example, the powdery particles in the white ink component may be floating on the surface layer of the ink due to insufficient binding force with the binder, and then dried; The aluminum hydroxide in the oil component is also light in the surface layer of the ink; the film-forming resin of the gloss paste component can improve the film forming effect of the ink and is also on the surface of the ink.
When the film is coated, the white ink pigment particles on the surface of the ink will hinder the adhesive and affect the further penetration of the adhesive on the surface of the ink layer; the aluminum hydroxide in the Weiley oil will easily form a barrier layer, hindering the adhesion. The interaction between the agent and the ink layer leads to foaming or poor adhesion; the bright light paste is beneficial to the film coating, and its composition is similar to that of the adhesive (the main component is a conjugated multi-bonded terpene resin), and the affinity effect is obtained. it is good. Therefore, when adding an ink thinner, it is necessary to consider the film coating effect of the product.
In addition, the particle size of the ink also affects the filming effect. If the particle size is too large, it will affect the bonding effect between the film and the surface of the printed product, and foaming may occur easily, and the bonding may be unrealistic. In particular, gold and silver inks are not suitable for film coating because the metal pigment particles are separated after the ink is dried, which hinders the bonding of the ink layer and the adhesive.
printing art
The print before the film is required to be printed. As mentioned above, the surface properties of the dried ink will affect the film coating effect, and under the premise of using a suitable ink, the printing web, the thickness of the ink layer, the drying effect and the like may also cause the film to be untrue.
If the printing format is too large (or printed in the field), the contact area between the surface of the paper and the adhesive will be reduced, which will increase the adhesion of the surface of the printed product and the adhesive, and the quality and service life of the coated product will be greatly reduced. . Therefore, it is necessary to avoid laminating large-format or printed products printed on the ground.
Product details
About Greener Walker
We are Greener Walker,we tried a variety of ways to protect the environment and finally we find it,the compostable and biodegradable bags.But this way is very very very slow and we just like a walker,but the pollution is a runner.So We need more walkers,we need you!
Love Pets Love Earth
For everyone who loves pets,pets are their family.Therefore,for pets and others,we should minimize the impact on the environment and others when we walking the dog.
Box Contains:
15 Bags/roll and 36 Rolls,totally 540 Bags
Bag's Size:23cm x 33cm(9in x 13in)
NOTICE:
Please store these bags in a cool,dark,dry place and keep them out of sunlight and away from sources of heat or steam.Use all bags within 18 months of purchase,otherwise they will start to degrade over time.
Keep Your Hands Safe:Our poo bags are 100% leak-proof and extra thick,never worry about your hands when you pick the poo up.
Super Value Package:36 rolls and 15 bags per roll,total 540 bags can supply up to 7 months.
About Measures:Bag's size 13x9 inches (LxW),fits all size of dogs and each roll fits standard-size leash dispensers.
Main Material:Unlike other poo bags, ours are made with corn starch blend which more friendly to environment.
Earth Friendly:We use recycled materials in our packaging and roll cores because details matter.
Flat Bags With Epi,Biodegradable Pet Waste Bags,Biodegradable Dog Poop Bags,Biodedradable Doggie Poop Bags
Taizhou Jinchi Sanitary Product Co., Ltd , https://www.jcpetwastebag.com