On February 22, the Guangzhou Municipal Information Office held a press conference on the theme of "Guangzhou Science and Technology Innovation "14th Five-Year Plan". According to the press conference, the Guangzhou Municipal Bureau of Industry and Information Technology will focus on the implementation of the "Guangzhou Municipal  Digital Transformation Policy Measures", focusing on "one chain, one policy" to promote the digital synergy of key industrial chains, "one line, one policy" to promote the digital development of traditional industrial clusters, "one enterprise, one policy" to guide the intelligent upgrading of key enterprises with advantages, and "one park, one policy" to strengthen industrial clusters. "One enterprise, one policy" to guide the intelligent upgrading of key enterprises with advantages, "one park, one policy" to strengthen the construction of internal and external networks in industrial parks, and other four aspects.     In order to comprehensively grasp the current situation, transformation pain points and transformation needs of enterprises in Huangpu District, judge the future market scale of Huangpu District and Guangzhou City, and provide a scientific basis for formulating policies related to digital transformation of enterprises, recently, a group of leaders from the Bureau of Industry and Information Technology of Huangpu District, Guangzhou City, visited Guangzhou Biaoji to carry out special research, which was warmly received by Mr. Zhou, Chairman of Biaoji, and Mr. Wang, Manager of R&D Department. According to the introduction, GBPI digital laboratory as a benchmark demonstration project of digital transformation, the system interconnects equipment management, laboratory management, customer information management, sample information management, testing task management, comprehensive management of experimental results and intelligent evaluation and other aspects of effective digital management through the interconnection of instruments and equipment and IT systems, realizing digital laboratory data, digital product quality management and customer service facilitation.  Guangdong Province is a manufacturing province, manufacturing is the main battlefield to promote the deep integration of the digital economy and the real economy. At present, the flexible packaging testing industry is generally at the stage of digital introduction and start-up. In the future, GBPI will continue to accelerate the strategic deployment of enterprise digitalization and firmly promote the accelerated development of manufacturing industry towards digitalization, networking and intelligence.

    As we all know, today's society has developed to the extent that all goods need to be packaged, where the packaging needs to be printed. Printing is the most important means of decoration and processing of product packaging, packaging without printing is almost unimaginable. Printing plays a role in the transmission of information, publicity about the product. At the same time, for some goods, printing also plays an important role in anti-counterfeiting. Today's packaging printing towards more exquisite and improve the direction of the added value of goods. Plastic flexible packaging ink is mainly divided into organic solvent-based ink, water-soluble ink, high-solid ink and non-benzene ink. Organic solvent-based ink using toluene, xylene, acetone, butanol, ethyl acetate and other low-boiling point volatile organic substances as a solvent, fast printing speed, good quality prints, lower cost, and therefore widely used.     Based on the current rapid development of China's social and economic situation, people's living standards have been greatly improved, and food safety issues are naturally being paid more and more attention to. Food packaging is not only the appearance of food to play a decorative role, but also its more important value is reflected in ensuring the safety and health of food, so the enterprises for food packaging printing technology and its safety to carry out relevant analysis, research is significant, the main direction of testing ink safety, printing ink layer firmness, ink residue and other directions. Gx-B3 Disk Stripping Tester is used for gravure printing process of plastic film and cellophane decorative printed materials (including composite film printed materials) to test the fastness of the printing ink layer bonding; it can also be used for vacuum coating, surface coating, composite and other related processes formed by the adhesion state of the surface layer test test. GX-C2 Rub Tester is suitable for testing the abrasion resistance of printing ink layer, the abrasion resistance of PS plate photosensitive layer and the abrasion resistance of the surface coating of related products; it can effectively analyze the poor abrasion resistance of printing products, the peeling off of ink layer film, the low printing resistance of PS plate and the poor coating hardness of other products. GC-9802 Gas Chromatography is suitable for detecting organic solvents, and can detect solvent residues in packaging and printing products, and also detect the purity or content of a single solvent, which is widely used in environmental protection, trace detection of pollution of the atmosphere and water sources; analysis, monitoring, and research of toxic substances; biochemistry; clinical applications; pathology and virus research; food fermentation; petrochemicals. Petroleum processing; oil analysis; geology, prospecting research; organic chemistry; synthesis research; health quarantine; publ...

    The compression strength of cartons is the most important quality index required by many commodity packaging. During the test, the corrugated carton is placed between two pressure plates and pressed to pressure when the carton is crushed. This is the compression strength of the carton, expressed in kn. compression strength of predetermined carton     Carton boxes require a certain degree of compression strength, because during storage and transportation after packaging, the cartons stacked in the bottom layer are under the pressure of the upper cartons. In order to avoid collapse, they must have the appropriate compression strength. Not only can the carton compressor be tested, the compression strength of the carton can be calculated by the following formula: P = KW (n-1)     Where p is the compression strength of the carton, w is the weight of the carton after packing, n is the number of stacking layers, and K is the stacking safety factor, and K is the stacking safety factor Calculate the stacking layer number n according to the stacking height h and the height of a single carton h, and N = H / h. The stacking safety factor is determined according to the number of stacking layers of the goods. According to national standards, for storage periods less than 30d, k = 1.6; for storage periods of 30d-100d, k = 1.65; for storage periods greater than 100D, K = 2.0.     Due to the influence of various factors in the production process, the final compression strength of the cartons produced with raw materials may not be completely consistent with the estimated results. Therefore, the ultimate accurate method to determine the compression strength of corrugated boxes is to test the compression strength of corrugated boxes with a carton compression tester     after constant temperature and humidity treatment. For small and medium-sized factories without testing equipment, a board can be covered on the carton, and then the same amount of weight can be stacked on the carton to roughly determine whether the compression strength of the carton meets the requirements     After the compression strength of the carton is determined according to the raw materials, the appropriate carton board and corrugated base paper should be selected to produce the corrugated carton, so as to avoid blind production and cause waste There are many formulas for calculating the compression strength of cartons based on the ring compression strength of the base paper, but the more concise and practical formula is the Kellicutt formula, which is suitable for estimating the compression strength of 0201 cartons.     Profession creates value, GBPI creates quality products! GBPI produces packaging compression testing machines, hot tack tester,heal seal strength tester, and other packaging testing instruments. Welcome to consult!

Packaging testing is essential to ensure the integrity of the packaging development, machine setup and quality control process. How to quickly choose a suitable air tightness testing equipment has become a major problem that plagues enterprises. Guangzhou GBPI company will introduce to you the testing methods of the mainstream air tightness detectors on the market. Companies can choose the right instrument according to their needs. 1. Positive pressure detection The positive pressure method is to seal and inflate the tested equipment so that its internal pressure is higher than the external atmospheric pressure. Three methods can be used: pressure drop method judgment, water immersion detection and fixed-point detection. Judgment by pressure drop method: In the case of completely sealing all contact surfaces, inflate the product, observe the pressure change through the air tightness tester to determine the magnitude of the leakage, and then infer the leakage of the equipment, but not the leakage point Make clear positioning. Water immersion detection (bubble method detection): Inflate a certain clean gas into the equipment, when the pressure reaches the set value, immerse it in water, and judge the location and size of the leak by observing the air bubbles. It is suitable for immersing in the interior Product detection in the water can accurately determine the location of the leak. Differential pressure detection method: The compressed air (positive pressure) is accurately input into the tested product and the standard product at the same time, the inflation circuit is cut off, and the IK-ALT series air tightness detector is used to calculate, compare and analyze to obtain the tested product The pressure difference ΔP between the product and the standard product is used to determine whether the product is qualified. 2. Vacuum leak detection (negative pressure method) detection The negative pressure method is to vacuum when the equipment is sealed to make the internal pressure less than the external atmospheric pressure. Specific applications include vacuum attenuation method (dry inspection) and vacuum side leakage method (water inspection) Vacuum attenuation method: Under the condition of completely sealing all contact surfaces, directly or indirectly vacuumize the product, and analyze and read the pressure value ΔP3 through the IK-MF series air tightness detector to determine whether the product is qualified . Vacuum side leakage method: differential pressure leak test method and bubble leak test method, the product to be tested is put into the leak test box, and the vacuum is drawn on the box body to cause a pressure difference between the inside and outside of the test product. At this time, the following phenomena will occur: a) For flexible packaging and soft bottles: I. If the packaging bag bulges and remains unchanged, the packaging is intact; II. The packaging bag does not bulge or shrinks, indicating that the packaging leaks; III. The p...

    Air permeability is the ability of a fabric to allow moisture vapor to pass through. It plays a vital role in clothing and medical textiles.     Air permeability has nothing to do with air exchange. Rather, it is the ability of a fabric to allow moisture vapor to pass through.     Fabrics can achieve this in many different ways, and air exchange is only one possible way.     Compared with breathability, moisture vapor permeability (MVP) and moisture vapor transmission (MVT) may be better and more technical.     Neither ASTM nor the Textile Association defines air permeability, but both MVP and MVT are defined in the test standard.     According to EN 31092: 1993, water vapor permeability is "the characteristic of textile materials or composite materials, which depends on the water vapor resistance and temperature. Water vapor permeability is expressed in pascals per square meter hour.     According to BS 3546:2001, water vapor permeability is "the ability of a coated fabric to transmit water vapor to a specified level while maintaining high permeability".     According to the definition in the standard EN 31092: 1993, the water vapor permeability index is the ratio of thermal resistance to water vapor resistance.     According to BS 3546:2001, "The difference in water vapor pressure between the two surfaces of a material divided by the evaporation heat flux per unit area in the gradient direction" can be regarded as the "opposite" of water vapor resistance and air permeability.     Water vapor will transfer from the high concentration (pressure) area to the low concentration area by diffusion. Unobstructed, this can happen easily.     However, barriers like fabric will slow down the rate at which this happens. It is important to remember that steam pressure drives water vapor: humidity is not the key factor.     Modern waterproof and breathable fabrics can be divided into three different types, each of which works slightly differently. The breathability and waterproofness of the fabric is not entirely accurate, because the holes in the fabric structure are large enough to allow     water vapor to pass through, but too small to allow water droplets to pass through     The fabric air permeability tester is a professional and commonly used instrument for measuring air permeability.     GBPI can provide fabric air permeability tester and Water vapor transmission rate tester and oxygen transmission tester for a long time. Welcome to inquire.