when the above - mentioned heat treated mixture of compounds ( a ) and ( b ) are incorporated into waving lotions containing , as a main component , a mercapto compound according to the present invention , only mercaptan causing an unpleasant odor can be selectively captured to effectively prevent vaporization of the unpleasant odor , without decreasing the desired fundamental reducing effect or power , based on thioglycolic acid , cysteine , and other mercapto compounds , of the waving lotion ( i . e ., the mercapto compounds are not substantially consumed by the above - mentioned heat treated mixtures ). the compounds ( a ) usable in the formation of the heat treated aqueous mixture are those having the above - mentioned general formulae ( i ) to ( xx ). these compounds may be used alone or in any mixture thereof . the preferable compounds are : p - hydroxy acetophenone , 1 - acetyl - 4 - carboxy methyl benzene , 1 - acetyl - 4 - carboxy ethyl benzene , p - diacetyl benzene , and p - nitro acetophenone included in the general formula ( i ), β - methyl naphthyl ketone included in the general formula ( iii ), hinokitiol included in the general formula ( iv ), 2 - cyclohexanone and carvone included in the general formula ( x ), and 2 - hydroxy - 1 , 4 - naphthoquinone included in the general formula ( xii ). the compounds ( b ) usable in the formation of the above - mentioned heat treated aqueous mixture are α -, β -, γ -, or δ - cyclodextrin , or any mixture thereof . typical cyclodextrins are α -, β -, and γ - cyclodextrins . the compounds ( a ) and ( b ) should be heat treated in an aqueous phase at a temperature of 50 ° c . to 100 ° c . preferably 70 ° c . to 90 ° c . at a mole ratio of ( a ):( b )= 1 : 9 to 1 : 1 , preferably 1 : 4 to 1 : 1 . when the amount of the compound ( a ) is less than 1 mole based on 9 moles of the compound ( b ) or is more than 1 mole based on 1 mole of the compound ( b ), the desired effect of eliminating the unpleasant mercaptan odor from the waving lotion or during the processing of the waving lotion cannot be obtained . on the other hand , when the heat treatment temperature is less than 50 ° c ., the desired effect of eliminating the unpleasant mercaptan odor cannot be obtained . the heat treatment of the compounds ( a ) and ( b ) can be effected in any conventional manner , desirably , while stirring , in an aqueous phase . there is no specific limitation to the heat treatment time . it is not necessary to heat for a long time . the heating time is generally 1 to 5 minutes . the solid content of the heat treated aqueous mixture can be varied in a wide range , for example , from 0 . 2 w / w % to 50 w / w %, desirably 1 w / w % to 10 w / w %, from the viewpoint of the operation . the heat treated aqueous mixture of the compounds ( a ) and ( b ) may directly be incorporated into a waving lotion . the preferably solid content of the heat treated mixture in the waving lotion is 0 . 0002 % to 40 % by weight , more desirably 0 . 05 % to 5 % by weight . the use of too small an amount of the heat treated mixture of the compounds ( a ) and ( b ) does not exhibit the desired odor elimination effect , whereas the use of too large an amount of the heat treated mixture results in no substantial increase in the unpleasant mercaptan odor elimination effect . the mechanism of the unpleasant mercaptan odor elimination of the above - mentioned heat treated aqueous mixture of the compounds ( a ) and ( b ) is not clearly understood , but it would seem that , without prejudice to the present invention , inclusion complexes are formed between the compounds ( a ) and ( b ) in the aqueous mixture during the heat treatment and these inclusion complexes do not attack thioglycolic acid , cysteine , and other mercapto compounds , but are selectively reacted with mercaptan . we believe that , since the compounds ( a ) having the general formulae ( i ) to ( xx ) have one or more carbonyl groups therein , the inclusion complexes with the compounds ( b ) are formed upon heating taking into consideration the molecular sizes and the locations of the substituted groups of the compounds ( a ). the waving lotion of the present invention may contain , as a main component , any conventional mercapto compound . examples of such mercapto compounds are thioglycolic acid , thioglycolates such as sodium thioglycolate , potassium thioglycolate , ammonium thioglycolate , monoethanol amine thioglycolate , glycerol monothioglycolate , thiolactic acid and its salts , and l - alginine thioglycolate , cysteine , cysteine derivatives such as n - acetyl - l - cysteine , and cysteine ethylester , and salts , such as hydrochloric acid , and sulfuric acid salts , of the cysteine derivatives . these mercapto compounds may be used alone or in any mixtures thereof . although there is no specific limitation in the content of the mercapto compounds in the waving lotion , the mercapto compounds are preferably incorporated into the waving lotion in an amount of 2 % to 10 % by weight , more preferably 3 % to 7 % by weight , based on the total weight of the waving lotion . the waving lotion of the present invention may optionally contain any conventional ingredients used in conventional waving lotions . examples of such conventional ingredients are hair softening agents such as ammonia , alkylol amines , and ammonium salts , oils such as liquid paraffines , squalene , fatty alcohols , triglyceride , esters , silicone oils , and lanolin , surfactants such as nonionic surfactants ( e . g ., polyoxyethylene alkyl ether ), anionic surfactants ( e . g ., sodium lauryl sulfate , sodium laurate ), and cationic surfactants ( e . g ., stearyl trimethyl ammonium chloride ), sequestrants such as ethylene diamine tetra acetate ( edta ), colorants such as guaiazulene , quinoline yellow ws ( d . & amp ; c . yellow no . 10 ), rhodamine b ( d . & amp ; c . red no . 19 ), perfumes , preservatives such as methyl parabene , sodium benzoate , and other agents such as water soluble polymers , cationic polymers , polypeptide , amino acids , and humectants . the waving lotion according to the present invention may be applied to the hair in the same manner as conventional waving lotions . after waving the hair , the hair is treated with conventional neutralizers containing , as a main component , bromate such as sodium bromate , potassium bromate , hydrogen peroxide , sodium percarbonate , and sodium perborate in any conventional manner . the present invention now will be further illustrated by , but is by no means limited to , the following examples , in which all percentages and parts are expressed on a weight basis unless otherwise specified . the compounds listed in table 1 below were incorporated into the following standard formulation to prepare waving lotions . ______________________________________standard formulationcomposition % by weight______________________________________50 % aqueous ammonium thioglycolate 13 . 0ammonium bicarbonate 5 . 0tetrasodium edta *. sup . 1 0 . 1compound listed in table 1 see table 1purified water balance______________________________________ *. sup . 1 ethylene diamine tetraacetic acid hair was wounded around rods and , then , was treated with the waving lotions prepared above , followed by treatment with a neutralizer . ______________________________________components % by weight______________________________________sodium bromate 5 . 0disodium phosphate , dibasic 0 . 1potassium phosphate , monobasic 0 . 4sodium benzoate 0 . 1purified water balance______________________________________ the waving effects of the waving lotions were evaluated from the formed coils . it is considered that the smaller the diameter ( mm ) of the resultant coil is , the larger the waving power is . the hydrogen sulfide generated in the upper spaces of the waving lotion containers was quantitatively determined by gas chromatography ( fpd ). the waving lotions were allowed to stand at room temperature for 5 months . ______________________________________300 ppm or more : very strong mercaptan odor150 ppm to 300 ppm : strong mercaptan odor 70 ppm to 150 ppm : weak mercaptan odor 0 to 70 ppm : no substantial mercaptan odor______________________________________ a 0 . 5 g amount of hair was mixed with 1 . 0 g of the waving lotion . the mixture was placed in a 400 ml plastic container and was allowed to stand at a temperature of 30 ° c . for 20 minutes . after 20 minutes , the odor was determined by means of gas chromatography and by smelling . as is clear from run nos . 5 to 6 in table 1 , the mercaptan odor of the waving lotions and the reaction odor of the waving lotions in the hair were eliminated or suppressed by incorporating the heat treated mixture of p - diacetyl benzene and cyclodextrin into the waving lotions . table 1__________________________________________________________________________ waving odor of reaction odor appearance of effect waving lotion in hairno . compound incorporated into waving lotion waving lotion ph ( mm ) h2s ( ppm ) h2s__________________________________________________________________________ ( ppm ) 1 no addition crystal clear 8 . 1 13 . 04 149 3502 p - diacetyl benzene 0 . 06 % crystallization 8 . 0 13 . 11 143 3533 β - cyclodextrin 1 . 14 % substantially transparent 8 . 2 13 . 54 155 3204 celdex ch - 20 *. sup . 1 5 . 0 % crystal clear 8 . 1 13 . 35 165 3605 β - cyclodextrin 1 . 14 % + p - diacetyl benzene 0 . 06 %*. sup . 2 substantially transparent 8 . 2 12 . 06 25 1056 celdex ch - 20 *. sup . 1 5 . 0 % + p - diacetyl benzene 0 . 06 %*. sup . 2 crystal clear 8 . 2 11 . 89 20 93__________________________________________________________________________ *. sup . 1 about 20 % aqueous cyclodextrins ( mixture ) manufactured by nihon shokuhin kako co ., ltd . *. sup . 2 the mixture was heat treated at a temperature of 85 ° c . fo 5 minutes , while stirring , after adding cyclodextrin and pdiacetyl benzen to water . the effects of various compounds represented by the general formulae ( i ) to ( xx ) on the elimination of the unpleasant mercaptan odor were evaluated in the same manner as in example 1 . the heat treated mixtures were prepared in the same manner as in example 1 . as is clear from the results shown in table 2 , the compounds having r 1 of electron attractive groups , as in nos . 6 to 10 and 12 , in the general formulae ( i ) to ( xx ) were effective , whereas the compounds having r 1 of electron donating groups as in nos . 2 to 4 were not effective as compared with the compounds having r 1 of hydrogen . as r 2 in the general formulae , hydrogen was effective as shown in no . 11 , and the effect was decreased in the cases of ch 3 and c 2 h 5 in this order ( see nos . 5 and 13 ). in the case of r 2 being c 5 h 11 , the effect was remarkably decreased as shown in no . 14 and no substantial advantage was obtained by the incorporation thereof into waving lotions . in addition to the benzene ring as in nos . 2 to 14 , a naphthalene ring as in no . 15 and cyclic conjugated ketones as in nos . 16 to 19 were effective as a mother nucleus . table 2__________________________________________________________________________ incorpo - rated β - cyclo - waving odor of reaction odorcompound amount dextrin effect waving lotion in hairno . general formula r . sub . 1 r . sub . 2 r . sub . 3 (%) (%) ph ( mm ) h . sub . 2 s h . sub . 2 s__________________________________________________________________________ ( ppm ) 1 -- -- -- -- -- -- 8 . 0 12 . 1 155 380 2 oh ch . sub . 3 -- 0 . 1 1 . 14 8 . 0 11 . 9 143 350 3 c . sub . 2 h . sub . 5 ch . sub . 3 -- &# 34 ; &# 34 ; 7 . 9 11 . 8 115 348 4 ch . sub . 3 ch . sub . 3 -- &# 34 ; &# 34 ; 7 . 8 12 . 9 93 330 5 h ch . sub . 3 -- &# 34 ; &# 34 ; 7 . 8 12 . 1 30 150 6 cl ch . sub . 3 -- &# 34 ; &# 34 ; 7 . 8 12 . 2 18 126 7 8 9 10 ## str3 ## ococh . sub . 3 ococ . sub . 2 h . sub . 5 coch . sub . 3 no . sub . 2 ch . sub . 3 ch . sub . 3 ch . sub . 3 ch . sub . 3 -- -- -- -- &# 34 ; &# 34 ; &# 34 ; &# 34 ; &# 34 ; &# 34 ; &# 34 ; &# 34 ; 7 . 8 7 . 8 7 . 8 7 . 9 12 . 0 12 . 5 11 . 9 12 . 0 15 14 11 15 103 115 96 11011 h h -- &# 34 ; &# 34 ; 7 . 8 12 . 4 13 11712 no . sub . 2 h -- &# 34 ; &# 34 ; 7 . 8 12 . 1 14 9013 h c . sub . 2 h . sub . 5 -- &# 34 ; &# 34 ; 7 . 8 11 . 8 36 12114 h c . sub . 5 h . sub . 11 -- &# 34 ; &# 34 ; 7 . 9 11 . 9 73 30015 ## str4 ## h ch . sub . 3 -- &# 34 ; &# 34 ; 7 . 8 12 . 2 20 13016 ## str5 ## -- c . sub . 3 h . sub . 7 oh &# 34 ; &# 34 ; 7 . 8 12 . 0 25 12717 18 ## str6 ## -- -- h c . sub . 3 h . sub . 6 h ch . sub . 3 &# 34 ; &# 34 ; &# 34 ; &# 34 ; 7 . 9 7 . 8 12 . 1 12 . 3 30 35 131 13519 ## str7 ## h -- oh &# 34 ; &# 34 ; 7 . 7 12 . 5 32 123__________________________________________________________________________ ______________________________________composition % by weight______________________________________50 % aqueous ammonium thioglycolate 12 . 5monoethanolamine 1 . 028 % aqueous ammonia 2 . 0tetrasodium edta 0 . 1heat treated mixture of p - diacetyl 30 . 0benzene and celdex ch20 *. sup . 1purified water 54 . 2______________________________________ *. sup . 1 obtained by adding 0 . 06 % of pdiacetyl benzene and 5 . 00 % of celdex ch20 to 24 . 94 % of purified water and , then , heating the mixture at a temperature of 85 ° c . to 90 ° c . for 5 minutes while stirring , followed by cooling to room temperature . the above components were mixed at room temperature to prepare the waving lotion . a neutralizer having the following composition was prepared by mixing the components at room temperature . ______________________________________composition % by weight______________________________________sodium bromate 5 . 0buffer ( i . e ., disodium phosphate ) q . s . preservative ( i . e ., sodium benzoate ) q . s . purified water balance______________________________________ according to a conventional processing method of permanent waving lotion , the waving lotion was first applied in an amount of 80 ml / person and , then , the neutralizer was then applied in an amount of 100 ml / person . the mercaptan odor was very weak when the cap was taken out from the container of the waving lotion and also when the waving lotion was applied . thus , the use of the heat treated mixture was very effective for eliminating the unpleasant mercaptan odor . after the application of the neutralizer , good waves were formed to have been formed when rods were removed . the resultant permanent wave was elastic and bright . ______________________________________composition % by weight______________________________________50 % aqueous ammonium thioglycolate 13 . 0ammonium bicarbonate 5 . 0trisodium edta 0 . 1cetyl alcohol 0 . 5polyoxyethylene oleyl ether ( e . o . = 20 mole ) 0 . 1sodium lauryl sulfate 0 . 05heat treated mixture of methyl - β - naphtyl ketone 40 . 0and β - cyclodextrin *. sup . 1purified water 41 . 25______________________________________ *. sup . 1 obtained from 0 . 03 % of methylβ - naphtyl ketone , 1 . 00 % of β - cyclodextrin and 38 . 97 % of purified water in the same manner as in example 3 . the waving lotion was prepared as follows . cetyl alcohol , polyoxyethylene oleyl ether ( e . o .= 20 mole ), and sodium lauryl sulfate were melted upon heating and , then , mixed heated water having a temperature of about 70 ° c . the resultant mixture was cooled while gradually stirring to obtain viscous white gel . the other starting materials were incorporated into the gel and the heat treated mixture . the mixture was gradually stirred at room temperature to obtain a viscous translucent white waving agent . the cold waving was carried out by using the above - prepared waving lotion and the neutralizer prepared in example 3 . as a result , no substantial mercaptan odor was detected during the application thereof and the ammonia odor was very weak . the wave thus obtained was bright and elastic . only a weak ammonia odor was detected from the mouth of the waving lotion container . no substantial mercaptan odor was detected . a waving lotion having the following composition was prepared in the same manner as in example 3 . ______________________________________composition % by weight______________________________________50 % aqueous ammonium thioglycolate 13 . 0monoethanolamine 0 . 5ammonium bicarbonate 4 . 5trisodium edta 0 . 2heat treated mixture of hinokitiol and 50 . 0celdex ch - 20 *. sup . 1polyoxyethylene oleyl ether 0 . 5 ( e . o . = 15 mole ) perfume 0 . 1colorant q . s . purified water balance______________________________________ *. sup . 1 obtained from 0 . 28 % of hinokitiol , 40 . 0 % of celdex ch20 and 9 . 72 % of purified water in the same manner as in example 3 . a mercaptan odor and an ammonia odor during the application of the waving lotion to the hair as well as the remaining odor of the hair were not substantially detected . the elastic wave was formed . no substantial odor was detected from the month of the container . a waving lotion having the following composition was prepared in the same manner as in example 4 . ______________________________________compostion % by weight______________________________________l - cystine 5 . 0monoethanolamine 3 . 0tetrasodium edta 0 . 5cetyl alcohol 0 . 7polyoxyethylene cetyl ether ( e . o . = 10 mole ) 0 . 160 % aqueous stearyl trimethyl ammonium chloride 0 . 2heat treated mixture of l - carvone 30 . 0and celdex ch - 20 *. sup . 1purified water 60 . 5______________________________________ *. sup . 1 obtained from 0 . 1 % of lcarvone , 4 . 0 % of celdex ch20 , and 25 . 9 % of purifed water in the same manner as in example 3 . the gel was obtained from cetyl alcohol , polyoxyethylene cetyl ether ( e . o .= 10 mole ), and stearyl trimethyl ammonium chloride in the same manner as in example 4 . from this gel , the waving lotion was prepared in the same manner as in example 4 . a mercaptan odor and an ammonia odor during the application of the waving lotion to the hair as well as the remaining mercaptan odor of the hair were not substantially detected and only an l - carvone odor was slightly smelt . the elasticity of the hair thus obtained was less than the elasticity obtained in examples 3 and 4 , but a desirable soft wave was obtained . no mercaptan odor was detected in the waving lotion . a waving lotion having the following composition was prepared in the same manner as in example 3 . ______________________________________composition % by weight______________________________________40 % aqueous monoethanolamine thioglycolate 10 . 0n -- acetyl - l - cystine 3 . 0tetrasodium edta 0 . 5heat - treated mixture of p - nitro acetophenone , 60 . 0methyl - β - naphtyl ketone , and celdex ch - 20 *. sup . 1ammonium bicarbonate 4 . 0monoethanolamine 1 . 0polyoxyethylene oleyl ether ( e . o . = 15 mole ) 0 . 5perfume 0 . 2glycerine 2 . 0colorant q . s . purified water balance______________________________________ *. sup . 1 obtained from 0 . 15 % of p nitro acetophenon , 0 . 03 % of methylβ - naphthayl ketone , 10 . 0 % of celdex ch20 , and 49 . 82 % of purified water in the same manner as in example 3 . no substantial mercaptan odor , except for an ammonia odor , was detected from the mouth of the waving lotion container . the reaction odor in the hair was weak and a bright and elastic wave was formed . a waving lotion having the following composition was prepared in the same manner as in example 3 . ______________________________________composition % by weight______________________________________50 % aqueous ammonium thioglycolate 12 . 5monoethanolamine 1 . 028 % aqueous ammonia 2 . 0tetrasodium edta 0 . 1cetyl alcohol 0 . 5polyoxyethylene cetyl ether ( e . o . = 20 mole ) 0 . 160 % aqueous stearyl trimethyl ammonium 0 . 15chlorideheat treated mixture of p - diacetyl benzene 50 . 0and celdex ch30 *. sup . 1purified water 83 . 6______________________________________ *. sup . 1 obtained from 0 . 05 % of pdiacetyl benzene , 10 . 0 % of celdex ch30h ( i . e ., about 20 % aqueous solution of cyclodextrins manufactured by nihon shokuhin kako co ., ltd . ), and 39 . 95 % of purified water in the same manner as in example 3 . the cold waving was carried out by using the above - prepared waving lotion and the neutralizer prepared in example 3 . no substantial mercaptan odor was detected during the application of the waving lotion to the hair and an elastic wave was obtained . no substantial mercaptan odor was detected in the waving lotion .
a waving lotion for cold waving comprising : a mercapto compound and an aqueous mixture obtained by heating at least one compound selected from the group consisting of the compounds having the general formulae to , ## str1 ## wherein r 1 is hydrogen or an electron attractive group , r 2 is hydrogen or an alkyl group having 1 to 4 carbon atoms , and r 3 is hydrogen , a hydroxyl group , or a methyl group and at least one cyclodextrin selected from the group consisting of α , β , γ , and δ - cyclodextrins in an aqueous phase at a mole ratio of := 1 : 9 - 1 : 1 at a temperature of 50 ° c . to 100 ° c . this waving lotion has no substantial mercaptan odor and generates no substantial or less of a mercaptan odor when applied to the hair .