Instant noodle production process(3)

 
Composite rolling
 
Acronym re-pressed, ripened the dough by two parallel roll nip into two patches, patch two parallel overlapped by a pressure roller, namely a homogeneous composite solid surface with a thickness.
 
main effect:
 
(1) loose dough pressed into fine, to the requirements of Thin sheet;
 
(2) to further promote the gluten network of organized crime, and fine tight network of organizations in the film surface evenly distributed, the starch granules surrounded, so that the surface sheet has a certain toughness and strength.
 
Process requirements: guaranteed patch thickness and smooth, no broken edges, holes, uniform color, and has a certain toughness and strength.
 
Effect of complex pressure effect of factors:
 
(1) technological properties of dough
 
Uniformly wet dough, gluten formation of full, appropriate temperature, structure and properties of dough, re-pressed sheet quality stuff back; on the contrary, tabletting poor results.
 
(2) multiple rolling
 
Rolling rolling ratio = thickness front / rear rolled sheet thickness, the greater the rolling multiples patch by squeezing the stronger, the more its internal fine gluten network organization. Note, however, rolling multiple is too large, it will damage the roll.
 
(3) ratio of rolling
 
Rolling ratio = rolling ratio is too small, the pressure will increase the number of rollers, not reasonable; rolling ratio is too large, the formation of gluten network will have been overstretched beyond the capacity of gluten, gluten will have formed a tear appropriate rolling very favorable compared to the network of organized crime. In addition, the roll diameter, rolling channel number, press roll rolling effect of the rotational speed are affected.
 
Three
 
Cut molding
 
Face with a high speed by a pair of knife roll is cut into strips, transmitted through the former to forming mesh belt. Since the cutter speed for large and small molding belt speed, speed of the two wavy shape formed errand noodles, instant noodles that is a characteristic shape.
 
Process requirements: noodles smooth, and no bar, no connection between Thick, corrugated neat, trekking.
 
Factors:
 
(1) the quality of the dough piece
 
Patch too much water, shredded after molding, pattern collapse accumulation; too little water, flowers loose, irregular. If the surface of the sheet edge damage, there are holes, it will form broken bars. Surface sheet is too thick, the surface will have wrinkles forming behind bars.
 
(2) the quality of knives
 
Roll roll knife if engagement is not deep enough, continue to cut the noodles, and of the cause; Roll surface roughness, cut noodles have glitches, poor finish. Comb surface pressed enough, make knives alveolar accumulation of impurities. Molding box impurities, will produce hanging strips.
 
The size of the (3) blade roll forming belt speed and speed ratio.
 
Ratio is too large, flowers piled noodles, cooking will lead impervious, fried impervious; ratio is too small, too large wave noodles, loose, can cause bread weight is not enough.
 
In addition, the front wall forming the guide casing pressure will affect the pattern of dense vegetables.