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401 results about "Cardboard box" patented technology

Cardboard boxes are industrially prefabricated boxes, primarily used for packaging goods and materials and can also be recycled. Specialists in industry seldom use the term cardboard because it does not denote a specific material.

Flexible preprinting cardboard box, production method and production equipment thereof

The invention discloses a flexibly pre-printed paper box, a manufacture method and a manufacture equipment thereof; the paper box has a box body consisting of a printed sheet, corrugated paper, inner paper and in some cases core paper; color patterns on the printed sheet are flexibly printed on the printed sheet before the paper box is manufactured. The manufacture method consists of a manufacture method of flexibly printed paper sheet and a manufacture method of the paper box; firstly the color patterns are manufactured on the printed sheet with a rotary flexographic press; then bright oil is applied, and then the printed sheet, the corrugated paper and the inner paper are made into the paper box by adopting a corrugated paper manufacture device; some paper box also comprises the core paper. The manufacture device consists of the rotary flexoographic press, the corrugated paper manufacture equipment and a die-cutting machine. Adopting the method and the equipment of the invention, the manufactured paper box is green and environmental protective, nice in printed patterns, high in compressive strength, convenient in lifting and low in reject rate; compared with paper boxes which are printed with offset printing and directly with flexible plate of the same quality requirement, the paper box of the invention has lower cost.
Owner:保定中士达包装有限公司

Heat shrinkable polyester film

A heat shrinkable polyester film of the present invention has a transverse tear defect percentage of about 20% or less as determined in the following vibration test: the film is rolled into a tubular shape, two of its opposite edges bonded together, and then the tubular film is placed around a vertical stack (total weight: 660 g) of three food container cans each having a diameter of 72 mm and a height of 55 mm; the can stack with the tubular film placed therearound is passed through a shrink tunnel to shrink the tubular film onto the can stack; a total of 18 packs of such can stacks are placed into a cardboard box having a length of 455 mm, a width of 230 mm and a height of 165 mm (6 packs in the length direction by 3 packs in the width direction), and the cardboard box is sealed; the cardboard box is vibrated along the width direction for 30 min by a stroke of 50 mm and at a vibration rate of 180 reciprocations / min, after which the transverse tearage of the tubular film is visually observed; and the transverse tear defect percentage (%) is determined based on the number of defective packs per 18 packs, wherein the defective pack is any pack having a tear flaw of 30 mm or longer along a can periphery. The heat shrinkable polyester film of the present invention has a good shock resistance during shipping especially under low temperatures, with a good finish after shrinkage and a sufficient solvent adhesiveness. Thus, the heat shrinkable polyester film of the present invention is suitable for use in a multi-packaging label for packaging, inter alia, a stack of cans.
Owner:ITO HIDEKI +4

Folded cushioning material for packaging

A cushioning material for packaging is provided, which is used when an article having a rectangular cross section or a cubic shape is packaged in an outer case, such as a corrugated cardboard box. The cushioning material is suitable for packaging the article therewith in an outer case while an end portion, which has a pair of corner sections, of the article is inserted into and supported by the cushioning. The cushioning material is provided with a grooved retainer (1) and a pair of end support members (2,2) disposed so as to close the ends of both end portions of the grooved retainer (1). The grooved retainer has a raised bottom (10) and two side walls (11,11) and is adapted to receive one inserted end portion of the article having a rectangular cross section or a cubic shape. The end support members each have a plurality of hollow portions (20), which are arranged in parallel in a predetermined direction, and a rectangular cross-section orthogonal to the longitudinal direction of the hollow portions (20). The grooved retainer (1) and end support members (2,2) are formed by folding a single sheet a of a predetermined planar shape along valley-forming folding lines (a1) and ridge-forming folding lines (a2) formed on the sheet. This enables to provide a cushioning material for packaging which has a simple structure and a low bulk specific gravity, and is not likely to deform.
Owner:HITACHI ZOSEN CORP +1

Cardboard box printing grooving machine printing unit single scraping cutter device

The invention particularly relates to a single scraper apparatus of a printing unit of a carton box print fluting machine, wherein an ink cavity of the single scraper is installed on a bracket by an articulated mechanism, and the scraper and a spacer are fixed on the ink cavity of the single scraper by a pressure plate and screws; a spring gauge is fixed on the bracket; one end of a spring rod is provided with threads, and the other end of the spring rod is a discoid fillet; the thread end of the spring rod is installed in the bolt hole of the ink cavity of the single scraper; a spring is installed between the spring gauge and the discoid fillet of the spring rod. A closing board at a nylon end and a closing board at an elastic end are respectively installed at both ends of the ink cavity of the single scraper; the ink cavity of the single scraper, the scraper, the closing board at the nylon end, the closing board at the elastic end and an air bag are installed between the ink cavity of the single scraper and the bracket. By adopting the technical scheme, an anilox roller can not be scratched, the ink can be recycled in the ink cavity, and the ink can be recovered and cleaned, which can save cleaning water, decrease pollutions of cleaning and decrease the cost of water treatment.
Owner:GUANGDONG DONGFANG PRECISION SCI & TECH CO LTD
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