Method of making cocoons with a sounding object
OwnerTomohiko Sakamurainventor
Life of this patent
Estimating the term…
Abstract
A manufacturing method in which the life cycle of a silkworm, particularly the cocoon forming stage of the silkworm is utilized to insert a sounding object such as a bell in a cocoon formed by the silkworm and thereby to produce a material which is particularly well suited as a material for folk handicrafts personal dress accessories or as a decorative article. Further the cocoon may be colored by the silkworm itself.
Claims8
A method of making a cocoon with a sounding object comprising the steps of:
- moving an adult silkworm to a spinning nest and forming a cocoon;
- forming a hole in a tail portion of said cocoon in an early period of the formation thereof;
- inserting a sounding object such as a bell into said cocoon through said hole;
- completing the formation of said cocoon while rotating said spinning nest;
- removing said cocoon from said spinning nest and killing said silkworm in said cocoon by steam.
A method of making a colored cocoon comprising the steps of:
- preliminarily applying a suitable amount of a coloring matter to the breathing holes associated with the mid and rear silk glands of a silkworm at a time before said silkworm sleeps for the fourth time;
- applying said coloring matter several times to said breathing holes during a time period between a fifth stage of said silkworm following said fourth sleep and a time at which said silkworm is moved to a spinning nest so so as to allow said coloring matter to be fully absorbed by said mid and rear silk glands;
- causing said adult silkworm to spin a cocoon in said spinning nest;
- and killing said silkworm by steam in said cocoon after the completion of the cocoon.
A decorative cocoon produced by moving an adult silk worm to a spinning nest to permit the silk worm to form the cocoon, making a hole in a portion of said cocoon in an early period of the formation thereof, inserting an extraneous device into said cocoon through said hole, permitting the silk worm to complete the formation of the cocoon while rotating said spinning nest, removing said cocoon from said spinning nest and killing said silk worm therein, whereby said extraneous device remains implanted in said cocoon shell.
A decorative cocoon produced by applying a suitable amount of coloring matter to the breathing holes associated with the mid and rear silk glands of a silk worm at a time before said silk worm sleeps for the fourth time, applying said coloring matter several times to said breathing holes during a time period between a fifth stage of said silk worm following said fourth sleep and a time at which said silk worm is moved to a spinning nest so as to allow said coloring matter to be fully absorbed by said mid and rear silk glands, causing said adult silk worms to spin said cocoon in said spinning nest and killing said silk worm in said cocoon after the completion of the cocoon, whereby the artificial coloring becomes an inherent part of the thread which the silk worm forms into said cocoon.
Dependencies are inferred from the claim text.