Abstract: There is provided a fastener bag capable of improving working efficiency for the filling of inner content and forming a bag cut-starting portion. The bag is formed as gusset-type packaging bag, to which a fastener for freely opening or closing the packaging bag is attached. The fastener has a male portion to which a projected thread is formed and a female portion to which a groove is formed so as to be engaged with the projected thread. Base portions of the male and female portions are attached to an inner surface of one of the flat surface portions or side surface portions so that the projected thread and the groove face each other. A cut-tape for separating the flat surface portion into the male portion side and the female portion side is provided between the base portions.

Abstract: A fastener bag includes a packaging bag formed by heat-sealing side parts of a packaging sheet in a butt seam, and a fastening device attached to the inner surface of the packaging bag. The fastening device includes a male fastening member and a female fastening member. The male fastening member is disposed on one side of the heat-sealed butt seam of the packaging bag, and the female fastening member is disposed on the other side of the heat-sealed butt seam of the packaging bag so as to be engage with the male fastening member, and a tear-facilitating means is interposed between the male and the female fastening member. The fastener bag is capable of being opened and of being reclosed, and is suitable for use on an automatic filling and packaging machine.

Abstract: A fastener bag includes a packaging bag formed by heat-sealing side parts of a packaging sheet in a butt seam, and a fastening device attached to the inner surface of the packaging bag. The fastening device includes a male fastening member and a female fastening member. The male fastening member is disposed on one side of the heat-sealed butt seam of the packaging bag, and the female fastening member is disposed on the other side of the heat-sealed butt seam of the packaging bag so as to be engage with the male fastening member, and a tear-facilitating means is interposed between the male and the female fastening member. The fastener bag is capable of being opened and of being reclosed, and is suitable for use on an automatic filling and packaging machine.

Abstract: There is provided a fastener bag capable of improving working efficiency for the filling of inner content and surely forming a bag cut-starting portion. The faster bag 1 is formed as gusset-type packaging bag, to which a fastener 10 for freely opening or closing the packaging bag is attached. The fastener 10 is composed of a male portion 11 to which a projected thread 11b is formed and a female portion 12 to which a groove 12b is formed so as to be engaged with the projected thread 11b. Base portions 11a and 12a of both the portions 11 and 12 are attached to an inner surface of one of the flat surface portions 2 or side surface portions 3 so that the projected thread 11b and the groove 12b face each other. A cut-tape 14 for separating the flat surface portion 2 into the male portion side and the female portion side is provided between the base portions 11a and 12a.

Abstract: There is disclosed a laminate comprising (a) a layer of a styrenic polymer having a higher degree of syndiotactic configuration and a crystallinity of at least 25%, preferably 35%, (b) a layer of paper and optionally (c) an adhesive layer and (d) a barrier layer. The above laminate is excellent in heat resistance, hydrolytic resistance, tearability, dead foldability and gloss and can find a wide range of effective application.

Abstract: There are disclosed a laminate comprising (a) a biaxially oriented film of a styrenic polymer having a high degree of syndiotactic configuration of 10 to 100 .mu.m in thickness and (b) a rubber-based self-adhesive layer of 5 to m in thickness and a self-adhesive tape comprising the above-mentioned laminate. The above laminate and self-adhesive tape are excellent in transparency, heat resistance, water resistance, moisture resistance, dispenser and hand cuttability, insulating properties and mechanical properties such as elasticity and nerve and can find a wide range of effective application.