Farm product protecting bag

Abstract

A farm product protecting bag adapted to be placed over a farm product, such as fruit, vegetable or flower, to protect it from diseases or harmful insects, wherein the bag contributes to improvement of quality, such as sugar content, color or external appearance of the farm product, the bag mount efficiency being increased to facilitate quality control. The bag is in the form of a transparent or semitransparent and/or light-transmitting porous film of plastic material with at least part or all of the surface of the bag being air-permeable or gas-permeable and having many fine pores impermeable to water, the bag comprising a bag main body having an opening that opens in one direction, and an attaching section for attaching the bag main body to the support portion of the farm product, it being preferable that the diameter of the largest of the fine pores be in the range of 50-500 μm and that the void area percentage be in the range of 0.7-10%, the fine holes being through-holes or closed holes closed at one end, it being preferable that the surface formed with irregularities in the peripheral edge of the fine holes be directed to at least the inside of the bag.

1 - 10 . (canceled)  
   
   
       11 . A farm product protecting bag for protecting a farm product such as fruit, vegetables and flowers by covering the farm product with the bag during the process of cultivating the farm product, 
 the bag having an opening which opens in at least one direction,    at least part, including a portion adjacent the opening, of the bag having many fine pores which are air-permeable or gas-permeable and are impermeable to water,    the bag being comprised of a transparent or semitransparent and/or light-transmitting film of plastic material having the fine pores, and    a protrusion being formed on the peripheral edge of each of said fine pores on one face or both faces of the film, a face on which the protrusions are formed facing inside of the bag.    
   
   
       12 . A multi-layered farm product protecting bag for protecting a farm product such as fruit, vegetables and flowers by covering the farm product with the multi-layered bag during the process of cultivating the farm product, 
 the multi-layered bag having an opening which opens in at least on direction,    the multi-layered bag being comprised of a plurality of nested bags, each of the nested bags being comprised of a film of plastic material,    at least part, including a portion adjacent the opening, of each of the nested bags having many fine pores which are air-permeable or gas-permeable and are impermeable to water, and    a protrusion being formed on the peripheral edge of each of said fine pores on one face or both faces of the film, a face on which the protrusions are formed facing inside of the multi-layered bag.    
   
   
       13 . A farm product protecting bag as claimed in either  claim 11  or  claim 12 , wherein the fine pores comprise largest pores having diameters in a range of 50-500 μm and wherein the void area percentage is in the range of 0.7-10%.  
   
   
       14 . A farm product protecting bag as claimed in either  claim 11  or  claim 12 , wherein the fine pores are through-holes passing from one face to the other face of the plastic film.  
   
   
       15 . A farm product protecting bag as claimed in either  claim 11  or  claim 12 , wherein the plastic film includes a coloring material.  
   
   
       16 . A farm product protecting bag as claimed in either  claim 11  or  claim 12 , wherein the plastic film is selected from the group consisting of a raw decomposable film, an ultraviolet ray absorbing film, an antibacterial or germicide film, a minus ion generating film, a far-infrared ray generating film and a deodorizing or aromatic film.  
   
   
       17 . A farm product protecting bag as claimed in either  claim 11  or  claim 12 , further comprising an attaching section for attaching the bag to a support portion, including a support branch portion, of the farm product, wherein the attaching section is formed from part of the bag or has been formed separately from the bag and then secured by thermowelding to the bag.  
   
   
       18 . A farm product protecting bag as claimed in either  claim 11  or  claim 12 , further comprising an attaching section for attaching the bag to a support portion, including a support branch portion, of the farm product, wherein the attaching section is a belt-like strip of a film which is substantially non-elongating iii a lengthwise direction thereof.  
   
   
       19 . A farm product protecting bag as claimed in either  claim 11  or  claim 12 , wherein the fine pores are closed pores formed by punching in the direction of thickness of the plastic film from one face to the other face of the plastic film, with one end of each of the pores being closed by an extremely thin film portion in the neighborhood of said other face.