Method For Applying Hot Melt Adhesive Powder Onto A Shoe Or Sole Part

• US 20130089677A1
• Filed: 10/01/2012
• Published: 04/11/2013
• Est. Priority Date: 09/04/2009
• Status: Abandoned Application

• Current Assignee: Orisol Asia Ltd.
• Original Assignee: Orisol Asia Ltd.
• Inventors: Makover, Jakov, Sadeh, Yaacov, Mardix, Bar Cochva
• Application Number:
  US13/632,949
• Publication Number:
  US 20130089677A1
• Time in Patent Office: Days
• US Class Current: 427/553
• CPC Class Codes: A43D 111/00 Shoe machines with conveyors for jacked shoes or for shoes or shoe parts
• CPC Class Codes: A43D 117/00 Racks for receiving or transporting shoes or shoe parts; Other conveying means
• CPC Class Codes: A43D 25/183 by nozzles
• CPC Class Codes: A43D 25/20 Arrangements for activating or for accelerating setting of adhesives, e.g. by using heat
• CPC Class Codes: B29L 2031/504 Soles

Abstract

A method for applying hot melt adhesive powder onto a sole or shoe part includes the steps of applying a cleaning agent, irradiating, applying a conductive liquid which has a conductivity at least 100 times higher than water, spraying hot melt adhesive powder; and heating. The method can save energy, reduce the working space, reduce the labor intensity and improve the working environment by making the spraying and the melting operation of the hot melt adhesive carry out automatically.

Claims

1. A method for applying hot melt adhesive powder onto a sole or shoe part comprising the steps of:

applying cleaning agent;

a cleaning agent is applied onto a to-be-bonded area of a surface of a to-be-bonded shoe;

irradiating;

the surface of the to-be-bonded shoe is irradiated in a irradiation chamber by UVC and ozone;

applying conductive liquid;

a conductive liquid which has a conductivity at least 100 times higher than water is applied onto the to-be-bonded area of the to-be-bonded shoe;

spraying hot melt adhesive powder;

charged hot melt adhesive powder is sprayed onto the surface of the to-be-bonded shoe in a spraying chamber to make the charged hot melt adhesive powder attached onto the to-be-bonded area of the to-be-bonded shoe under the effect of an electrostatic field; and

heating;

the to-be-bonded area on which is sprayed the hot melt adhesive powder is heated in a heating chamber to melt the hot melt adhesive powder.

2. The method for applying hot melt adhesive powder onto a sole or shoe part as claimed in claim 1, characterized in that:

the step of applying cleaning agent and the step of applying conductive liquid are combined into a single step by using a mixture of cleaning agent and conductive liquid.

3. The method for applying hot melt adhesive powder onto a sole or shoe part as claimed in claim 1, characterized in that:

the hot melt adhesive powder is a polyurethane adhesive powder.

4. The method for applying hot melt adhesive powder onto a sole or shoe part as claimed in claim 3, characterized in that:

the hot melt adhesive powder is a thermo plastic Polyurethane.