To provide a method which can form a latex layer easily without generating pinholes in a bag type container of a relatively coarse texture when the latex layer is formed in the bag type container, especially in a three- dimensional fabric.

A process in which a foamed latex solution 5 is poured with air into the bag type container B containing a latex coagulant, and after the latex layer being formed in the texture, the solution is poured again is included. In this way, the texture of the container is closed, and by pouring the next solution, a good latex layer can be formed without generating the pinholes.