• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to packaging. The purpose of the invention is to increase the strength of the packaging container. For this, the additional fold lines are located symmetrically with respect to the main fold line, advantageously by distances of 3-15 thicknesses of the material, the gap in the fold line in the area where the additional fold lines are located has a length that corresponds to 20-80 times the thickness of the laminate, and The intersection of the additional fold lines may be stratified. 2 hp f-ly, 4 nl. CO F; o O)
    公开号:SU1296003A4
    申请号:SU802996300
    申请日:1980-10-17
    公开日:1987-03-07
    发明作者:Сестрелли Ренато
    申请人:Тетра Пак Интернэшнл Аб" (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to the food industry, namely to preforms of laminated material for the packaging container, and is an improvement of the invention in patent No. 971085.
    The purpose of the invention is to increase the strength of the packaging container.
    Fig. 1 shows a sludge blank and a layered material for the packaging container blank, isometric. (The distance between the lines corresponds to the upper limits); Fig. 2 shows a folded blank or a layered material for a blank, provided with a traditional folding line pulling a fold in accordance with the known technology, section; FIG. 3 shows a double folded blank or laminate for preparing a packaging container in accordance with the invention; Fig 4 is the same, with the exfoliation between the additional folding lines,
    A laminated material for the preparation of a packaging container, intended to be transformed into a blank and a container, usually contains an average carrier layer of paper covered on both sides with layers of thermoplastic material. To ensure the formation of skirt in the required place and in the required directions, a laminate blank is often provided fold lines, i.e. Straight lines in the material that is intended to guide the fold. This contributes to the formation of wrinkles, since the fold line not only guides the fold, but also serves as an index for wrinkling in the cage. Wrinkling is stronger and more pronounced along the fold line, as a result of which the folded laminate has a thickening (bulge) (.fig, 2), the layered material (figure 2) consists of several layers (not shown). However, on the inner layer 1 of the packaging laminate is formed along the fold line 2 located inside the fold, a whole series of longitudinal wrinkles make it difficult to produce sharp folds and result in the formation of a bulge 3, which is clearly visible on the outer side of the fold. Further folding of the folded material thus folded in half along the folding line intersecting with





    five
    0
    five
    line 2 fold, probably causes such stretching in the outer layer 1 of the material that this layer is torn.
    Difficulties of repeated folding along fold lines intersecting with each other can be eliminated if folds or folds are made so that the thickness is doubled The folded material in the fold area is reduced. This can be achieved by breaking in a certain place of the main fold line (which, when forming a package, forms in a layered material
    4 fold line) and replacing it in this place with two additional fold lines located on both sides of the specified main fold line and passing symmetrically and essentially parallel to it, and with an appropriate choice of the length of the break in the main fold line, this does not affect The line forms a straight line 5 fold. With the help of additional fold lines 6, located on either side of the fold line, the wrinkling of the layer facing the inside of the fold can be reduced and shifted to adjacent additional fold lines (FIG. 3). Crease line
    5 is more acute due to the displacement of the place of wrinkle formation.
    to two additional fold lines 6, located at some distance from it, and bulging 3, unavoidable when folded according to the known technology (FIG. 2), it is not o3Ha4aeTj that the folded laminate 4 can be easily folded again twice along the lines intersecting with the line 5 folds.
    0
    0
    45
    50
    55
    The main 7 folds in the layered material, which, when forming the container, forms a fold line 5 (FIG. 1, a dash-dotted line), has a gap in which it is replaced by two additional fold lines 6 that extend symmetrically in the direction of the main fold line. on both sides of line 5 so that the fold line, after folding, passes between the auxiliary lines, nowhere coincides with them. The fold line 5 coincides with an imaginary straight line connecting the end points of the main fold line 7 facing each other.
     The fold line runs with sufficient straightness between the two end points of the main fold line 7, even with a relatively large distance between them. However, the result depends on the quality of the laminate and on its thickness, and in order to guarantee a good result, the main fold line 7 must have a gap in the location of the additional fold lines that corresponds to 20-80 times the thickness of the laminate. The lower limit of the onp is divided by the minimum distance necessary for the laminated material not to become so soft that there is a danger of a change in the direction of the fold lines when the lines intersect each other.
    The two additional fold lines 6 are mutually parallel and arranged symmetrically with respect to line 5. Since line 5 passes between the end points of the main fold line 7 is linear, the distance between each additional fold line 6 and the extension of the main fold line 7 is such that The fold fold lines 6 do not affect line 5 and do not direct it so that it passes along one of them. Two additional fold lines cause wrinkles to form on the inner layer of the material occur along these lines, and therefore, to ensure a good result, additional fold lines should be located at a certain distance from line 5. The optimal values of the distance between each additional line 6 himiba and line 5 or the main line 7 are within 3 t J 5 thickness of the laminate. In this sense, the fold line 5 is the straight line connecting the two end points of the main fold line 7. This distance depends on the thickness of the laminate, since the thicker the laminate, the more wrinkles form, and therefore the distance between the fold line and the auxiliary fold line must be increased accordingly so that the wrinkling does not affect the fold line.
    R
    5 th e-t5 th 20
    - 25 - 30 to tz5 40. 50
    55
    The displacement of the wrinkle site that occurs when the packaging laminate is folded, provided with fold lines, is due to the fact that the section of the layered material located between the additional fold lines 6 can be completely or partially layered. Delamination occurs when extruding the fold lines 6 and means that when the laminate is folded, the outer layer facing the inside of the fold may be displaced relative to the base layer of the layered material, resulting in an excess of material not causing wrinkles on the fold line, but shifting to additional fold lines 6 that facilitate and direct the formation of wrinkles. Consequently, in the laminated material 4, in the area of the additional fold lines 6, a slight thickening occurs, which, however, does not serve as an obstacle to the further folding of the material, since it is located some distance from the line 5.
    The laminated material for the packaging container, provided with fold lines, allows it to be repeatedly folded along the fold lines intersecting each other without excessively thickening the folds leading to the formation of cracks in the outer layers. This is achieved with a small additional cost due to the approach design of fold lines, which can be performed even in the production of blanks from a laminated material for a packaging container at very high speeds,
    权利要求:
    Claims (2)
    [1]
    Invention Formula
    1, A blank of a laminate for a packaging container according to patent No. 971085, characterized in that, in order to increase the strength of the packaging container, the additional folding lines are arranged symmetrically with respect to the main folding line, the gap in the folding line in the area where the additional folding lines are located, which corresponds to 20-80 times the thickness of the laminate.
    [2]
    2. The blank according to claim 1, wherein the distance between the main and additional lines is 3-1 5 times the thickness of the laminated material.
    3, the blank according to claims 1 and 2, characterized in that the section between the additional folding lines is stratified.
    Phi1.
    Figg
    // 7 /// 7
    Fig.Z
    FIG L
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1296003A4|1987-03-07|Blank from laminated material for packing container
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    US3360181A|1967-12-26|Reinforced carton
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    US1845391A|1932-02-16|Process of manufacturing containers
    US2070324A|1937-02-09|Method of and means for folding paper products
    FI12908Y1|2021-03-03|Bag
    US3140810A|1964-07-14|Box-like containers
    FI81066C|1990-09-10|Valve Sack Thread
    同族专利:
    公开号 | 公开日
    DE3069908D1|1985-02-14|
    AU534364B2|1984-01-26|
    US4559259A|1985-12-17|
    JPS5670941A|1981-06-13|
    EP0027668B1|1985-01-02|
    CA1151614A|1983-08-09|
    SE432918B|1984-04-30|
    EP0027668A1|1981-04-29|
    AU6349380A|1981-04-30|
    SE7908645L|1981-04-19|
    JPS6311141B2|1988-03-11|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE7908645A|SE432918B|1979-10-18|1979-10-18|BIG LINE PACKAGED LAMINATE|
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