Abstract: Provided is an eyelash extension adhesive comprising the following components (a) and (b): (a) a monofunctional monomer of formula (I) wherein R1 represents a hydrogen atom or a methyl group, and R2 to R6 each independently represent a hydrogen atom or a C1 to C6 alkyl group, and (b) a photopolymerization initiator. The eyelash extension adhesive is excellent in durability and water resistance, can adhere easily to eyelashes even in a wet state, and is very useful as a photopolymerizable adhesive for eyelash extension attachment not including a cyanoacrylate compound.

Abstract: Provided is an eyelash extension adhesive comprising the following components (a) and (b): (a) a monofunctional monomer of formula (I) wherein R1 represents a hydrogen atom or a methyl group, and R2 to R6 each independently represent a hydrogen atom or a C1 to C6 alkyl group, and (b) a photopolymerization initiator. The eyelash extension adhesive is excellent in durability and water resistance, can adhere easily to eyelashes even in a wet state, and is very useful as a photopolymerizable adhesive for eyelash extension attachment not including a cyanoacrylate compound.

Abstract: A method and device for forming a warp beam of uniform diameter by feedback control of winding tension, in which a signal obtained from local winding tensions, each corresponding to a tension of a yarn at a certain widthwise position, are utilized for adjusting the position and width of a reed so that distribution of the warp on the beam is improved and an intra-beam diameter difference is compensated. One of the signals obtained from the local winding tensions is utilized for adjusting the rotational speed of rollers so that an inter-beam diameter difference is compensated. Thus, a warp beam without intra- or inter-beam diameter difference can always be produced.