Corrugated cardboard box design
Corrugated design needs to be tested in the design of different factors and aspects, designed for different ways, according to the actual industrial methods and principles of control and use, first according to the contents of the characteristics of the transport environment and the choice of materials and the required strength To design 楞 type. There are several kinds of single corrugated and multi-layer corrugated, each layer has A, B, C, etc. can be selected according to the needs (national...
Study on Water Content of Corrugated Cardboard
The so-called corrugated board moisture content, refers to the water content in the corrugated board (usually expressed as a percentage). The paper material that constitutes the paperboard is, from the microscopic structure point of view, a myriad of diamond-shaped structures formed by the interweaving of fully dispersed fibers. The arrangement and stacking of these diamond-shaped structures are directional and random, and thus inevitably form some Pores, resulting in a non-compact porous...
Culture Paper Stable Cardboard Corrugated Paper Continues to Rise
Lack of upward catalysts, the trend of cultural papers is stable; benefiting from the recovery in demand, boxboard corrugated prices continue to rise. The price of coated paper was basically stable this week. The market supply of copperplate paper at Jinhai Pulp Plant was gradually increased. The dealers' lack of confidence in the market outlook was mainly due to wait and see. The price of offset paper is basically stable. In the near future, the upstream pulp price is stable, the...
Corrugated cardboard box three kinds of preprinting methods features contrast
According to different preprinted equipment, preprinted corrugated boxes can be divided into offset preprinting, gravure preprinting, and flexo preprinting. LukoCarton waterborne ink manufacturers print quality of these three preprinting methods. , plate making costs, printing plate resistance and other issues were compared: 1. Offset preprinting, good printing quality, low plate making cost, and low printing plate resistance, the solvent type ink that is not environmentally friendly is used....
These method steps detect the puncture strength of corrugated cardboard
[Chinese Packaging Network News] 1, testing standards GB/T 2679.7—2005 Determination of Puncture Strength of Cardboard 2, the scope of application of the standard This section applies to all kinds of cardboard, including corrugated cardboard. 3, the definition Puncture resistance Under the specified test conditions, the energy consumed by penetrating the cardboard with the puncture head conforming to the standard is expressed in joules (J). 4, parameter interpretation The puncture strength of a...
How to determine the puncture strength of corrugated cardboard? There are ways and steps!
[Chinese Packaging Network News] 1, testing standards GB/T 2679.7—2005 Determination of Puncture Strength of Cardboard 2, the scope of application of the standard This section applies to all kinds of cardboard, including corrugated cardboard. 3, the definition Puncture resistance Under the specified test conditions, the energy consumed by penetrating the cardboard with the puncture head conforming to the standard is expressed in joules (J). 4, parameter interpretation The puncture strength of a...
How to solve the problem of corrugated cardboard?
[Chinese Packaging Network News] friends engaged in the carton industry, every year for some time to be chased by the customer to chase the butt asked the same sentence: Why is it so soft! This problem is really troublesome and difficult to solve, because the fiber used in carton base paper is a kind of hydrophilic material and it is naturally hygroscopic. In wet weather such as the rainy season, when the relative humidity in the air is too high, the cartons are in direct contact with the air...
BHS Holds New Product Launch Conference of Constant Speed Star E/S Corrugated Cardboard Production Line
[China Packaging Network News] On April 14, 2015, China International Corrugated Exhibition opened in Shanghai New International Expo Center. The world’s leading supplier of corrugated machinery manufacturing and service – BHS held a new product launch event on the opening day of the exhibition. The industry introduced two new products, namely "Constant Speed Star E" and "Constant Speed Star S". It is understood that BHS "Constant Speed Star E" has been...
60 percent of cardboard box forming and printing glossary in the corrugated box industry
Three primary colors Also called three primary colors; they are red, yellow and blue. Color difference The light has a different refractive index due to its different wavelengths, resulting in a hue deviation called chromatism. Also refers to the difference between a known color and a color standard. Toning chart Based on the red, yellow, and blue colors, two of the primary colors are mixed to obtain a color; adding another primary color to the intermediate color results in a complex color, so...
Digitally printed corrugated cardboard packaging
In the past, corrugated cartons have been mainly printed by offset printing, followed by flexographic printing. However, both methods of printing have their shortcomings. The investment cost of both is high, and a plate must be prepared before printing to print the image on the substrate, and the price of this plate accounts for a large proportion of the entire operating cost. In recent years, it has been digital printing that has hit the two printing methods. The digital printing process is a...
Fifty Five in the Cardboard Forming and Printing Glossary in the Corrugated Box Industry
Edition heart The book format only refers to the portion of the text and the plate (excluding the surrounding blank space). Also called version mouth. Long Order Also called the big order. Old British paper-making units. One long order was 516 sheets and it was no longer needed. In Europe, some people have also recorded a large order as 500 and used it sparingly.
Corrugated cardboard industry
penetration When two different concentrations of solution (or solution and pure solvent) are separated by a semipermeable membrane, the dilute solution (or solvent) diffuses (or transfers) through the semipermeable membrane to the concentrated solution. In the paper industry, it refers to the effect of the cooking liquor spreading through the surface of the wood chips. Osmotic pressure The permeation pressure of the solution occurs. It is equal to the mechanical pressure applied to the original...
Corrugated cardboard box industry
Middle high rollers After machining with a medium-high roller, the grinding head cam setting is set to achieve a specific medium-high shape. Shrinkage After the paper is formed, from the perspective of the group fibers, it is worthwhile that the longitudinal fibers flow in the longitudinal direction of the paper machine, the pulling force is large, and shrinkage does not occur easily. The transverse fibers of the paper are intertwined with each other, cancel each other out and have some...
Corrugated cardboard industry
Zhong Gao The original intention is to compensate the roll body due to its own weight caused by the sagging method. Numerically, it is the difference between the diameter on the cross section of the center of the roller and the diameter on the end face. The press rolls and calender rolls on the paper machine need to have medium and high heights on the rollers in order to keep the pressure in the nip of the roll evenly distributed and compensate for deflections caused by deflection.
Corrugated cardboard industry 35.
Tile line design speed One of the basic parameters when designing a tile line is generally higher than the operating speed (upper limit) of a tile line. Tile line creeping speed The minimum speed of the tile line at the start of cleaning or inspection.
Corrugated cardboard in stacking shape effect
Cardboard stacking shapes are nothing more than four: single-row parallel stacking; double-row parallel stacking; well-shaped sub-stacking piling code; multi-row layered cross stacking code. The advantages and disadvantages are as follows: 1.Single-row parallel stacking Advantages: The board can be fully radiated up and down, and around four weeks; positive and negative ones can be used to make the cardboard smooth; Disadvantages: Cardboard center heat can not be distributed in a timely manner,...
Analysis of local collapse of corrugated cardboard
Under normal circumstances, the corrugated cardboard rolled by a single-faced corrugator should meet the national standards for its height and the number of turns per 300mm length. If you use Silicon Valley as the origin of the coordinate system, the shape of the cocoon should be symmetrical, as if the alternating-current sine wave is smooth and smooth, and the cocoon height is equally lossless. However, we often encounter various forms of defects in our production practices, and the results...
Analysis of local collapse of corrugated cardboard
Under normal circumstances, the corrugated cardboard rolled by a single-faced corrugator should meet the national standards for its height and the number of turns per 300mm length. If you use Silicon Valley as the origin of the coordinate system, the shape of the cocoon should be symmetrical, as if the alternating-current sine wave is smooth and smooth, and the cocoon height is equally lossless. However, various forms of defects are often encountered in production practices and affect the...
Several problems that should be noticed in the direct flexo printing of corrugated cardboard 1
The factors affecting the quality of corrugated board printing include plate making, equipment, materials, technology, and environment. 1. Prepress processing First of all, the original design should pay attention to the accurate use of color. For the packaging design of corrugated board flexographic printing, in the use of color, one must create various types of works that are elegant, or bold, or warm, or have a strong visual impact; Second, try to reduce the number of printing colors as much...
Several problems that should be noticed in direct flexo printing of corrugated cardboard 2
It is necessary to pay attention to the measurement of ink viscosity in use, neither too high nor too low. Pay attention to changes in pH. Because in the printing process, due to the volatilization of water, it will cause the viscosity of the aqueous ink to increase and the pH value will drop. The pH should be controlled between 8.5 and 9.5. If it exceeds this range, the pH stabilizer can be used to adjust the viscosity. When it is slightly larger, appropriate amount of water can be added for...
