There really is no technique when drawing blind, because you can't see what you draw. The only technique is the one you've mentioned (contour line drawing, which means not including shading).
A blind contour drawing is done by not looking at the paper and observing only the subject that they are drawing. Once the piece is finished then the artist may look at their work.
A line that follows the edge of form is a contour line. This type of art is called contour drawing. Doing it without looking at the paper is called blind contour drawing.
A blind contour drawing is made by looking at the subject continuously while drawing the outline without lifting the pencil from the paper, typically resulting in a stylized and expressive representation of the subject. The focus is on capturing the essence of the subject rather than making an accurate representation.
Colloquial language
A "blind spot" is an expense a person overlooked or did not account for when drawing up a budget.
Strip Search - 2013 Drawing Blind 1-8 was released on: USA: 26 March 2013
What technique is being used? The moon is faithful, although blind
Blind riveting is a fastening technique used to join materials together without requiring access to the back side of the workpiece. It involves inserting a blind rivet, which consists of a hollow body and a mandrel, into a pre-drilled hole. When the mandrel is pulled, it deforms the rivet, creating a secure connection. This method is commonly used in applications where access is limited, such as in automotive and aerospace industries.
In the context of a drawing, "spectacle blind" refers to a design that obscures or limits visibility, creating an element of mystery or intrigue. An "open" spectacle suggests transparency and accessibility, inviting the viewer to engage with the work. Conversely, a "closed" spectacle implies confinement or restriction, potentially evoking feelings of isolation or introspection. Together, these elements can convey contrasting themes of visibility and concealment, influencing the viewer's emotional response.
To create an invisible hem on a garment, fold the fabric edge twice to encase it, then stitch close to the folded edge using a blind stitch or invisible stitch. This technique hides the stitching, creating a seamless finish on the garment.
blind contour, countour, gesture, continuous line, mass gesture, reductive, parallel hatching and cross hatching
Creating writing for blind people so they could read.