Contact pressure sensor, knit product having same, and method of manufacturing contact pressure sensor

A method of manufacturing a contact pressure sensor that detects a pressing force applied to a pressed body by a pressing body through a sensor portion disposed between the pressing body and the pressed body, the method comprising:

• a sensor portion knitting step of knitting the sensor portion using a knitting yarn including a carbon nanotube yarn,
• wherein the sensor portion knitting step includes:
• forming a pressing body contact surface with which the pressing body comes into contact, a pressed body contact surface with which the pressed body comes in contact, knitting yarn intersecting portions between the pressing body contact surface and the pressed body contact surface, and void portions which are spaces between the pressing body contact surface and the pressed body contact surface and in which the knitting yarn is not disposed;
• wherein, in the sensor portion knitting step, the sensor portion is knitted such that a first end portion and a second end portion, which are both ends of the sensor portion in a course direction, each includes a terminal formed of the knitting yarn derived from a plurality of courses of the sensor portion.

A method of manufacturing a contact pressure sensor that detects a pressing force applied to a pressed body by a pressing body through a sensor portion disposed between the pressing body and the pressed body, the method comprising:

• a knitting yarn preparing step of preparing a knitting yarn including the carbon nanotube yarn;
• and
• a sensor portion knitting step of knitting the sensor portion using the knitting yarn including a carbon nanotube yarn,
• wherein the sensor portion knitting step includes:
• forming a pressing body contact surface with which the pressing body comes into contact, a pressed body contact surface with which the pressed body comes in contact, knitting yarn intersecting portions between the pressing body contact surface and the pressed body contact surface, and void portions which are spaces between the pressing body contact surface and the pressed body contact surface and in which the knitting yarn is not disposed;
• wherein the knitting yarn preparing step includes a twisting step of twisting the carbon nanotube yarn and a water-soluble yarn, and in the twisting step, the surface of the carbon nanotube yarn is covered with the water-soluble yarn.