Closure and band of connected closures

Abstract

The present invention provides a closure having a closing function and reclosability that is gentle on the hands of consumers and can have a low environmental impact. The invention also provides a closure whereby the connection parts in a band of connected closures are resistant to the influences of humidity changes. The present invention is a closure having a closing function and reclosability, formed of a composite layer having a layer made of paper, and provided with a closure hole, provided in substantially a center, for closing an object to be closed, as well as an opening that is smaller than the closure hole provided at one end, the opening communicating with the closure hole. Preferably this closure comprises a synthetic resin layer laminated between two layers of paper.

1 . A closure having a closing function and reclosability, which is formed of a composite layer having at least a layer formed of paper, and which has a closure hole, provided substantially in a center part, for closing an object to be closed, and which is further provided with, at one end, an opening that is smaller than the closure hole, the opening communicating with the closure hole, wherein at least one of layer or layers other than the paper layer is formed from synthetic resin and/or biodegradable resin, the closure comprises, on side faces, detachable connection parts that are connected to other closures adjacent thereto that are in a line with the closure, when the closure and the other closures are formed as a band of connected closures and one or more notches are formed at the detachable connection parts at least in the layer formed of paper. 
   
   
       2 . (canceled) 
   
   
       3 . (canceled) 
   
   
       4 . The closure according to  claim 1 , wherein the layer formed from the synthetic resin and/or biodegradable resin includes an oriented film. 
   
   
       5 . The closure according to  claim 1 , wherein the closure is formed of a composite layer comprising layers made of paper that are laminated on both surfaces of the layer of synthetic resin and/or biodegradable resin. 
   
   
       6 . The closure according to  claim 1 , wherein the closure is formed of a composite layer comprising the layers of synthetic resin and/or biodegradable resin laminated on both surfaces of the layer of paper. 
   
   
       7 . The closure according to  claim 1 , wherein the layer of synthetic resin is formed from any one of olefin resin, polyethylene terephthalate (PET), polystyrene (PS), acrylonitrile (AN) and polyvinyl alcohol (PVA). 
   
   
       8 . The closure according to  claim 1 , wherein one or more notches are formed in the connection parts of the closure from one or both surfaces thereof towards an inner layer. 
   
   
       9 . The closure according to  claim 1 , wherein only the layer made of paper at the connection parts of the closure is severed. 
   
   
       10 . The closure according to  claim 1 , wherein the weight per unit area of the paper is 400 to 1000 g/m 2 . 
   
   
       11 . The closure according to  claim 1 , wherein the average length of fibers making up the paper is 1.0 mm to 4.0 mm. 
   
   
       12 . The closure according to  claim 1 , wherein ink or a coating material is printed or coated on the surface of the closure. 
   
   
       13 . A band of connected closures formed by connecting the closures according to  claim 1  in a line by means of the adjacent connection parts of the closures. 
   
   
       14 . A package product wherein the object to be closed is closed using the closure according to  claim 1 .