从70元涨到上千元，被称“纸片茅台”的撕拉片是什么

Core Viewpoint - The resurgence of "Peel-apart film" or "撕拉片" is driven by its unique manual development process and retro aesthetic, leading to increased demand and skyrocketing prices in the market [12][14]. Group 1: Historical Context - Peel-apart film was invented by Edwin Land in the 1940s, allowing instant photo development, which became popular in the 1960s and 1970s [6]. - The production of peel-apart film ceased in 2008 for Polaroid and in 2016 for Fujifilm, marking the end of an era for this once-mainstream product [6]. Group 2: Technical Aspects - The basic principle of peel-apart film involves a light-sensitive negative and a positive film with a chemical pouch [8]. - The development process includes exposing the negative to light, breaking the chemical pouch, and separating the negative and positive to reveal the final image [9][11]. - Unlike instant cameras that automatically eject photos, peel-apart film requires manual extraction, which introduces variability in the development process [10]. Group 3: Market Dynamics - The current market for peel-apart film is characterized by a supply-demand imbalance, with prices for a box of 10 sheets rising from around 65-70 yuan to several hundred or even over a thousand yuan [12]. - The scarcity of available products has led to a perception of high collectible value, with some referring to it as "paper Maotai" due to its inflated prices [14]. Group 4: Consumer Behavior - Consumers are drawn to the unique experience of using peel-apart film, despite the risks of expired products leading to potential development failures [15]. - There are two main consumption models: one where consumers pay regardless of whether an image develops, and another where businesses guarantee a photo but not its quality [15].